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Prove(SinA+cosecA)2+(cosA+secA)2=1/tanA+cotA

Posted by Ajay Singh 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If SecA=x+1/4x.prove that SecA+TanA=2x or 1/2x

Posted by Akshit Prajapati 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If A+B=90° and SecA=5/3,then find the value of cosec B

Posted by Akshit Prajapati 6 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Sapna Jain 6 years, 11 months ago

5/3

Puja Sahoo 6 years, 11 months ago

A+B=90° ->B=90°-A , also SecA=5/3. ->Cosec(90°-A)=5/3. ->CosecB=5/3

ANSWER

Chapter name=circle Exercise=10.2 Ouestion number=12

Posted by Roman Empire 6 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Sapna Jain 6 years, 11 months ago

Ye itna jaruri nhi h.ye paper me nhi aata

Shivani Jangid 6 years, 11 months ago

simply take area firstly by heron's formula then we know that tangents are equal in length so let tangents from a be of x cm then apply heron's formula and simply area of three triangles.use result of both the cases it'll provide You with The vale of x and add 8 and 6 to get desirable result. Andare Will be 15 , 13 cm

ANSWER

Explain triangles theorem 6.1 in hindi

Posted by Jatin Arora 6 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Sapna Jain 6 years, 11 months ago

Jab hm traingle ke beach me ek line khecte h .to vo do equal parts me divide ho jata h

Sapna Jain 6 years, 11 months ago

I learn it in english

ANSWER

Prove root 5 is an irrational no

Posted by Abhinav Singh 6 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Sapna Jain 6 years, 11 months ago

It is very simple question

Chētnà Pandey✌️ 6 years, 11 months ago

Let us assume that √5 is a rational number. we know that the rational numbers are in the form of p/q form where p,q are intezers. so, √5 = p/q p = √5q we know that 'p' is a rational number. so √5 q must be rational since it equals to p but it doesnt occurs with √5 since its not an intezer therefore, p =/= √5q this contradicts the fact that √5 is an irrational number hence our assumption is wrong and √5 is an irrational number.

ANSWER

If sin (A + B) = sin A cos B + Cos A Sin B and Cos (A - b) = Cos A cos B+ sin A Sin B, find th value of (1) sin 75 and ( 2) 15

Posted by Ravi Shankar 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Ravi Shankar 6 years, 11 months ago

Give me answer of this question

ANSWER

If the pth, qth and rth terms of an AP be a,b,c respectively then show that a(q-r) +b(r-p) +c(p-q) =0

Posted by Abhishek Pandey 6 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

Let the first term and common difference of the AP be A and D
p^th term = a ……… (given)
= A + (p – 1)D = a ............(1)
q^th term = b
{tex}\Rightarrow {/tex} A + (q - 1) D = b ......... (2)
rth term = c .......... Given
{tex}\Rightarrow {/tex} A + (r - 1) D = c ........ (3)
Multiplying equations (1), (2) and (3) by q - r, r - p and p - q respecitvely, we get
a(q - r) + b(r - p) + c(p - q)
= [A + (p - 1) D] (q - r) + [A + (q - 1)D] (r - p) + [A + (r - 1) D] (p - q)]
= A [q - r + r - p + p - q] + D [(p - q) (q - r) + (q - 1) (r- p) + (r - 1) (p - q)]
= A (0) + D(0)
= 0

ANSWER

ax + by - a + b= 0 , bx - ay - a - b =0 Solve for x and y

Posted by Me ❣️ 6 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

ax + by = a - b multiply by a
bx - ay = a + b multiply by b

{tex}\Rightarrow{/tex} x = 1
{tex}\therefore{/tex} a + by = a - b
by = -b
y = -1
{tex}\therefore{/tex} x = 1
y = -1

ANSWER

If the points A(1,2),B(0,0)andC(a,b) are collinear ,then what is the relation between a and b

Posted by Aryan Soni 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Shivani Jangid 6 years, 11 months ago

2a=b

ANSWER

A motor boat whose speed is 20 km/h in still water ,takes 1 hour more to go 48 km upstream than to return downstream to the same spot. Find the speed of the stream

Posted by Rashmi Singh 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Rakesh Choudhary 6 years, 11 months ago

All woop woop so all all XL clamshells stuff to do the needful at the moment I am not sure if you are not filtered into for the first time I will be able to get the best regards John John to everyone for me to do it in the morning of the year and a half day city tour poster and flyer and hi to all those people winning bidder and for your help in this email is not a problem at hand and wrist watch the video in HD for Android iPhone iPad or Android for Fun forward to hearing from you soon and I will be in your help and support to the same to you and your family and friends is for the use of the day of the you tube and my family and friends is hi to all those years ago by your help in this email is not available for the delay in response the credit of your help and I have a good idea to everyone in your help with your company and its really appreciate you reaching the hi to everyone in your help with your help with your company and I have been a bit for the first time I will ans2356

ANSWER

Gd morning frnds??????have a nice day?????

Posted by Puja Sahoo 6 years, 11 months ago

CBSE > Class 10 > Mathematics

5 answers

Ricky Roy 6 years, 11 months ago

Good morning iam feeling sadly

Narendra Modi 6 years, 11 months ago

Morning guys have a nice day

Shubhendra Singh ? 6 years, 11 months ago

Good morning☀⛅?☀

Rishabh Jain 6 years, 11 months ago

Good morning have a better day pooja ji

Chētnà Pandey✌️ 6 years, 11 months ago

Good morning ?

ANSWER

sin(A+B)×sin(A_B)=

Posted by Aarushi Yadav 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

sin 105=

Posted by Aarushi Yadav 6 years, 11 months ago

CBSE > Class 10 > Mathematics

3 answers

Aarushi Yadav 6 years, 11 months ago

I got its answer sin(105) = sin(60+45) = sin60cos45+cos60sin45. =√3÷2 ×1÷√2+1÷2×1÷√2=√3+1÷2√2 answer is √3+1÷2√2

Aarushi Yadav 6 years, 11 months ago

Thanks, but your answer is wrong

Shubhendra Singh ? 6 years, 11 months ago

Sin (105)= (-0.970535283)////

ANSWER

(secA+tanA) (1-sinA) pls solve this

Posted by Sai Suraj 6 years, 11 months ago

CBSE > Class 10 > Mathematics

3 answers

Sunita Awasthi 6 years, 11 months ago

CosA

Khushi Jaiswal 6 years, 11 months ago

=cos A/sinA+ sinA/cosA × (1-sinA ) =1/sinAcosA × 1- sinA =1- sinA/sinAcosA =1/sinAcosA - sinA/ sinAcosA =cosecAsecA- 1/cosA =cosecAsecA-secA =secA(cosecA - 1)

Dipti Singh 6 years, 11 months ago

Cos Φ

ANSWER

Give me the 10 board exam time table

Posted by Krishna Prasath 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Prakhyat #Varanasi 6 years, 11 months ago

2019 Date Sheet Date Day Subject March 7, 2019 Thursday Mathematics March 13, 2019 Wednesday Science Theory Science Without Practical March 19, 2019 Tuesday Hindi Course A and B March 23, 2019 Saturday English Comm., English Lng and Lit March 27, 2019 Wednesday Foundation of IT, Info and Comm Tech March 29, 2019 Friday Social Science

ANSWER

9-9/9-9=2 prove that in one minute

Posted by Sumit Yadav 6 years, 11 months ago

CBSE > Class 10 > Mathematics

4 answers

Sumit Yadav 6 years, 11 months ago

9/9=3*3-3*3/3*3-3*3=(3-3)(3+3)/3(3-3)=3+3/3=6/3=2 Hence proved

Sumit Yadav 6 years, 11 months ago

I do it

Seenu Malgi 6 years, 11 months ago

9-9/9-9 3×3-3×3/3×3-3×3 (3-3)(3+3)/(3-3)(3+3) 3+3/3+3 9/9 1 Hence proved

Amit Bisht 6 years, 11 months ago

Not possible

ANSWER

2+2=5 any one prove that with in one minute

Posted by Sumit Yadav 6 years, 11 months ago

CBSE > Class 10 > Mathematics

5 answers

Sumit Yadav 6 years, 11 months ago

2+2=5 2=5-2. .....(1) 2=3 Then put the value of 2 in equation (1) 2+3=5 Hence proved ?

Sumit Yadav 6 years, 11 months ago

I serious in study that is a simple question

Yash Sharma ?? 6 years, 11 months ago

Multiply (2+2)×0=0 Mutliply 5×0=0 0=0 Hence proved ??

Priya Kumari 6 years, 11 months ago

Yesss...!! I can..

Amit Bisht 6 years, 11 months ago

You are not serious in study

ANSWER

Guys......datesheet aa gayi h 7 march ko first exam h maths ka

Posted by Usha Yadav 6 years, 11 months ago

CBSE > Class 10 > Mathematics

5 answers

Narendra Modi 6 years, 11 months ago

Datesheet has been released

Ashish Roy 6 years, 11 months ago

To kya kahna chahti thi

Usha Yadav 6 years, 11 months ago

Sorry m pagal nahi khana chati thi galti se likh diya

Usha Yadav 5 years, 8 months ago

Are pagal aa gayi h

Prachi Chandila 6 years, 11 months ago

january me aayegi.

ANSWER

√x+y=7 and x+√y=11 solve

Posted by Vipin Dabas 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

ax/b-by/a= a+b , ax-by=2ab solve

Posted by Siddhi Tehlan 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

?☠Debraj Bairagi☠? 6 years, 11 months ago

X=-b,y=-3a

ANSWER

In the given figure, O is the center of the circle and TP is tangent to the circle from an external point T. If angle PBT=30, prove that BA:AT =2:1.

Posted by Seth Rollins 6 years, 11 months ago

CBSE > Class 10 > Mathematics

4 answers

Rashi Kashyap 6 years, 11 months ago

Yr figure kaha hai

Divyansh Sharma 6 years, 11 months ago

No thanks chalta hai bro ha Ishma kya

Rishabh Jain 5 years, 8 months ago

Thanks bro

Divyansh Sharma 6 years, 11 months ago

Solution- Given=TP is the tangent to the circle with centreO. T is an external point on the circle AND angle PBT=30. To prove-BA:AT=2:1. Proof-???????Angle AOP=30*=60 Angle OAP=180-30-90=60 therefore,OP=PA also Angle ATP=Angle APT=30 therefore,AP=AT=OP=OA Hence,BA=2,OA=2 at BA:AT=2:1…....................…………………....Hence proved.

ANSWER

Find the HCF by euclid division algorithm of the numbers 92690 , 7378 , 7161.

Posted by Neelam Sahu 6 years, 11 months ago

CBSE > Class 10 > Mathematics

3 answers

Divyansh Sharma 6 years, 11 months ago

Start answer in downward sorry....... Mistake

Divyansh Sharma 6 years, 11 months ago

Sorry.......??????7378=4154×1+3224 (remainder≠0) 4154=3224×1+930 (remainder≠0) 3224=930×3+434(remainder≠0) 930=434×2+62(remainder≠0) 434=62×7+0(remainder=0). therefore,HCF(92690,7378)=62 7161=62×115+3162=31×2=0 Therefore, HCF(7161,62)=31 Hence,HCF(92690,7378,7161)=31

Divyansh Sharma 6 years, 11 months ago

By using euclid division algorithm 92690=7378×12+4154

ANSWER

If the perimeter of a semi circular protractor is 36cm find its diameter

Posted by Neelam Sahu 6 years, 11 months ago

CBSE > Class 10 > Mathematics

2 answers

Rashi Kashyap 6 years, 11 months ago

Sorry yr radius galat find go use solve kar lo

Rashi Kashyap 6 years, 11 months ago

Perimeter of semi circular protactor=36cm 2πr =36cm 2×22/7×r=36cm . 44r=36cm×7 r=36cmx7/44 r=126/11cm

ANSWER

Tan2A + cot2A = sec2Acosec2A - 2

Posted by Ujjwal Rai 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Ujjwal Rai 6 years, 11 months ago

V

ANSWER

Timing for all exams will be 10:30am to 1:30am 1.Thursday 07 March 2019 - Mathematics 2.Wednesday 13 March 2019 - Science 3. Tuesday 19 March 2019 - Hindi 4. Saturday 23 March 2019 - English 5. Friday 29 March 2019 - Social Science Result will released in first week of June 2019 All the best

Posted by Ankit? Raj ??⚽️??? 6 years, 11 months ago

CBSE > Class 10 > Mathematics

6 answers

Rishabh Jain 6 years, 11 months ago

Aaj hi announce hua hai

Rishabh Jain 6 years, 11 months ago

Yes this is 100% real. I was search on cbse website

Ankit? Raj ??⚽️??? 6 years, 11 months ago

Ya 100% real hai u can refer on cbse website

Riya Trivedi 6 years, 11 months ago

100% real ha

Mithil Vaishnav 6 years, 11 months ago

Is that real!

Riya Trivedi 6 years, 11 months ago

All the best ???

ANSWER

Find the value of. 'k'. If the quadratic equation

Posted by Harini Venkatesan 6 years, 11 months ago

CBSE > Class 10 > Mathematics

1 answers

Sarita Mishra 6 years, 11 months ago

By putting quadratic formula

ANSWER

Guys date sheet aa gyi hai board ki how was your prepration going on all the best all of you check kariye is website pe: cbse.nic

Posted by Chētnà Pandey✌️ 6 years, 11 months ago

CBSE > Class 10 > Mathematics

4 answers

Mithil Vaishnav 6 years, 11 months ago

Continue to study. All the Best All Of you.

Diksha Y 6 years, 11 months ago

Please give me tips to revise whole syllabus in winter vacations

Riya Trivedi 6 years, 11 months ago

Ya focus on study ??

Chētnà Pandey✌️ 6 years, 11 months ago

?? Be prepared boards are waiting?

ANSWER

The sum of two numbers is 16and the sum of there reciprical is1/3 find the numbers

Posted by Lavish Tomar 6 years, 11 months ago

CBSE > Class 10 > Mathematics

4 answers

Rishabh Jain 6 years, 11 months ago

Thanks yogita ji

Riya Trivedi 6 years, 11 months ago

Nice Yogita ji

Riya Trivedi 6 years, 11 months ago

The numbers are 4 and 12

Yogita Ingle 6 years, 11 months ago

Let one number be x.
therefore , another number = 16 - x        (because sum of two numbers is 16)
also ,
1/x + 1/16 - x = 1/3 (Given)
(16 -x +x) / x(16 -x) = 1/3
   16*3 = x(16 - x)
   48 = 16x - x²
or x² - 16x + 48 = 0
or x² - 12x - 4x + 48 =0
x(x-12) -4(x-12) =0
x-4 = 0 or x-12 =0
x=4 or x=12
hence one Number is 4 .
and another number = 16 - x =16 - 4 = 12 .

ANSWER

I want to know that do u have more model papers of class 10th maths 2018 19

Posted by Omkar Chahilya 6 years, 11 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

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