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G CD

Posted by Pups Vengiliganapalli 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Riya Rathore 6 years, 2 months ago

Mtlb

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Prove that ,Sin A(1+tanA)+cosA(1+cotA)=(secA+cosecA)

Posted by Aditya Biswakarma 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Kr.?? 6 years, 2 months ago

sinA(1+tanA)+cosA(1+cotA)=secA+cosecA.....solving LHS first.... sinA(1+sinA/cosA)+cosA(1+cosA/sinA) [since we know that tanA =sinA/cos/A and cotA=cosA/sinA] =sinA(cosA+sinA/cosA)+cosA(sinA+cosA/sinA)=sinA+cosA{sinA/cosA+cosA/sinA}.....[taking sinA+cosA as common]=sinA+cosA(1-cos^2A+cos^2A)/sinA•cosA=(sinA+cosA)/(sinA•cosA)........now solving RHS.....secA+cosecA=1/cosA+1/sinA=(sinA+cosA)/(sinA•cosA).... Since LHS=RHS....Hence proved..??

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a box contains 12 balls out of which X are black if one ball is drawn at random from the box what is the probability that is Bolivia black ball

Posted by Rahul Ranjan 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Megha Pentewar 6 years, 2 months ago

1/12

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Toko Boss 6 years, 2 months ago

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Find HCF of 55 and 210. Express it as a linear combination of 55 and 210 i.e. HCF of 55 and 210 = 210a+ 55b for some a and b.

Posted by Thejaswini Prakash 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Rinky Chauhan 6 years, 2 months ago

a = 5 , b= -19

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If tan theeta=4, the value of (7sin theeta- 3cos theeta)/7sin theeta+3cos theeta (a)1/7 (b)5 /7 (c)3/7 (d)5/14

Posted by Anu K 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Simran Kaur 6 years, 2 months ago

1/7

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P(x)=2y+4 g(x)=5y+7

Posted by Rashmi Gupta 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Abhi Mittal 6 years, 2 months ago

What we have to get from it

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Hi toppers Full preparing for exams

Posted by Rahul Bora 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

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2x-(a-4)y=2b+1 4x-(a-1)y=5b-1 Values of a and b

Posted by Abhishek Gupta 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Rahul Bora 6 years, 2 months ago

Lol

2Thank You

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Formula of volume of frustum

Posted by Sahil Kundu 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Kr.?? 6 years, 2 months ago

1/3πh(r^2+R^2+rR)

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55+42-42/2*4=?

Posted by Shubham Gupta 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Archna P 6 years, 2 months ago

110

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Suhana Bee 6 years, 2 months ago

55+42-42 --------------- 2×4 =55+0 ------- 2×4 = 55 ----- 8 =6.875

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A plane is flying at a height on a plain ground two consecutive km stones on the same ground.The stones are placed on the opposite side.The angle of depression from the first stone is alpha and from the second stone is beta.Find the height of the plane on which it iz flying

Posted by Amrish Choudhary 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

1+10×4

Posted by Suba Sree 6 years, 2 months ago

CBSE > Class 10 > Mathematics

6 answers

Dr. Sanskari ?‍⚕️?‍⚕️ 6 years, 2 months ago

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Harjeet Kaur 6 years, 2 months ago

41 by formula bodmas

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Ragini Singhal 6 years, 2 months ago

41 by bodmas

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Sreesatya Grandhi 6 years, 2 months ago

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♛ ❝Ѕυнαɴα❞ ♛ 6 years, 2 months ago

41??

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Sumitcool Coolsharma 6 years, 2 months ago

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If cosB/cosA = m and cosB/sinA = n. Then show that ( m²+n²)cos²A = n²

Posted by Star Mh 6 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Piyush Kr.?? 6 years, 2 months ago

I think there should be cosA/cosB=m and cosA/sinB=n then we can prove the equation..??

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Piyush Kr.?? 6 years, 2 months ago

Wrong question..

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The roots of the equation 2 x square -5 x plus 3 e is equal to zero are

Posted by Harshit Sharma 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Sumitcool Coolsharma 6 years, 2 months ago

Zeros are 3/2 and 1

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Scouts planned to conduct a program part of their activities to scout Sameer and Kabir plant with Gulab Jamun Ansal two Gulab Jamun for rupees 5 both have different opinions about the shape of gulab jamun Sameer ---a cylinder with hemispherical and 15 cm and diameter 2 cm Kabir ---a sphere of diameter 3 centimetre which shape is more profitable why

Posted by Raksha Kamath 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

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Prove that √2 +√3 is irrational

Posted by Shripad Kalmane 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

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Maths ncert k optional krna zaruri h kya?????????

Posted by Sumaiya Afroj 6 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Sumaiya Afroj 6 years, 2 months ago

Thankssss everyone???

0Thank You

Ragini Singhal 6 years, 2 months ago

Yes

1Thank You

Raksha Kamath 6 years, 2 months ago

Yes...

2Thank You

Goldy Singh 6 years, 2 months ago

Yes

2Thank You

♛ ❝Ѕυнαɴα❞ ♛ 6 years, 2 months ago

Hn!??.. rd k examples krlijiye.... Phir ap k liye ezy hoga..

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Completing square method of ch 4 still in syllabus of 2020 yes or no ?

Posted by Navdeepsunny Singhkalra 6 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Harjeet Kaur 6 years, 2 months ago

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Ragini Singhal 6 years, 2 months ago

0Thank You

Sumitcool Coolsharma 6 years, 2 months ago

Yes

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Jatin Agrawal 6 years, 2 months ago

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Amit Kumar 6 years, 2 months ago

yes

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a tower AB is 20 m high and bc its shadow on the ground os 20root 3 find the suns altitude

Posted by Adesh Sharma 6 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Raksha Kamath 6 years, 2 months ago

Ans is 30°

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Piyush Kr.?? 6 years, 2 months ago

30°

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Navdeepsunny Singhkalra 6 years, 2 months ago

The ans is 30 degreee

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Prove that sin theta-cos theta+1 /sin theta+cos theta-1=1/sec theta-tan theta using identity sec square theta =1+tan square theta

Posted by Zyx Xyz 6 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Show that 2 √2 is an irrational number

Posted by Astha Jain 6 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Piyush Kr.?? 6 years, 2 months ago

Let 2 root 2 is a rational number and a divided by b is the simplest form of the given number now a divided by b is equal to 2 root 2.... That is a divided by 2 b is equal to root 2 Now a divided by 2b is a rational number and so root 2 is also a rational number but this contradicts the fact that √2 is an irrational number. Hence our supposition was Wrong and so root 2 is an irrational number...

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Let Δ ABC~Δ DEF and theirs areas be, 64 CM and 121 CM. If EF=15.4,find BC

Posted by Ruby Jain 6 years, 2 months ago

CBSE > Class 10 > Mathematics