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Value cos 0°.cos 30°.cos 45°.cos 60°.cos 90° is

Posted by K Gangayya Reddy 6 years ago

CBSE > Class 10 > Mathematics

2 answers

Raj Kumar 6 years ago

0 if we multiply any number with zero it will give zero and cos90 =0 so answer is 0

Mukul Kumar Yadav 6 years ago

0 because cos 90 is 0 and we multiple zeto on any value is 0 . Answer is 0

ANSWER

The value of sin 60°cos 30°+sin 30°cos60° is

Posted by K Gangayya Reddy 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

3chapter kaise revision kre

Posted by Akanksha Rani 6 years ago

CBSE > Class 10 > Mathematics

5 answers

Akanksha Rani 6 years ago

Please answer me friends for my question

Akanksha Rani 6 years ago

Formula kaise read kare

Roman ? Reigns ? 6 years ago

By learning formula and by knowing the best way to solve the question

Akanksha Rani 6 years ago

Mathematics ka

Roman ? Reigns ? 6 years ago

Kis subject ka

ANSWER

The Sum of the Zeroes of the polynomial 3xsquare - x - 4 is ?

Posted by Anany Mittal 6 years ago

CBSE > Class 10 > Mathematics

2 answers

Anany Mittal 6 years ago

Wrong

Sanket Arjun 6 years ago

-1/3

ANSWER

Given that sin⁴A/a + cos⁴A/b=1/a+b Then prove that (sin⁴A)²/a³ +(cos⁴A)²/b³ =1/(a+b)³

Posted by Indian Gaming 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

How to solve the qn no.4 in construction exercise 11.1

Posted by Rahul Sharma 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

point A lies on the line segment PQ joining P (6,6) and Q (-4,-1) in such a way that PA/PQ=2/5. If point P also lies in the line 3x+k (y+1)=0 find the value of k.

Posted by Ishika Yadav 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

HCF of 168 and 128

Posted by Bengia Minu Bengia Minu 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Gourisankaran M. P 6 years ago

8

ANSWER

Video of Exercise - 10.2

Posted by Ashif Iqbal Rahman Rahman 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Alok Ranjan 6 years ago

What's your question bro

ANSWER

If the sum of 7 terms of A.P is 49 and that of 17 terms is 289. Find the sum of n terms

Posted by Sangeeta Nunaiya 6 years ago

CBSE > Class 10 > Mathematics

2 answers

Gourisankaran M. P 6 years ago

D=2,a=1 sum of n terms=n^2

Aadya Singh ? 6 years ago

n^2.

ANSWER

What is the diagram of rhombus

Posted by Sangeeta Nunaiya 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

ABCD is a square of side 14cm. Semicircle are drawn with each side of the square as diameter . Find the area of shaded region

Posted by Anshita Chalia ❤ 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Is the 2d graph in cbse-class x

Posted by Priti Koyal 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

An iscoceles triangle with PQ=PR=8 is incribed in a circle with radius 10cm. What is the area of the triangle?

Posted by Raja Rosy Singh 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Basic proportional thereom

Posted by Khushboo Chaudhary 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Sonam Jadhav 6 years ago

If a line is drawn parallel to one side of a triangle it intersect the other two sides in distinct points the other two sides are divided in the same ratio

ANSWER

An A.P consists of 37 terms . The sum of three middle most terms is 225 and the sum of last three terms is 429. Find the A.P

Posted by :) ** 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Sanket Arjun 6 years ago

Middle most terms=(37+1)/2=19th. Three middle most terms are 18th,19th and 20th. || A/q. a18 +a19+a20=225. || (a+17d)+(a+18d)+(a+19d)=225.|| 3(a+18d)=225. || a+18d=75. || a=75-18d || Next, (a+34d)+(a+35d)+(a+36d)=429. || 3(a+35d)= 429.|| a+35d=143. ||. (75-18d)+35d=143. ||. 17d=68. ||. d=4.

ANSWER

Shadow of a tower is found to be 3 times as long as the shadow when sun altitude was 60 degree than when it is A . Find the value of A

Posted by Abhi Mittal 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Show that anypositive odd integer is of the form 4q+1,4q+1 where q is a positive integer

Posted by Prince Rana 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If each of alpha beta and gama are positive acute angles such that Sin(gama+beta-alpha)=1/2,Cos(beta+gama-alpha)=1/2 and tan(gama+alpha-beta)=2,find the value of alpha beta and gama

Posted by Heena Tabassum 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the 20th term of an Ap whose 3rd term is 7 and the seventh term exceed three times the 3rd term by 2 also find its nth term (an)

Posted by Shrikant Ingle 6 years ago

CBSE > Class 10 > Mathematics

3 answers

Sanket Arjun 6 years ago

añ=-1+(n-1)4 || añ=4n-5

Sanket Arjun 6 years ago

a20=(-1)+19(4). ||. a20=75

Sanket Arjun 6 years ago

A/q a+2d=7 || a+6d-3(7)=2 || a+6d=23. || Subtract eq (1) from eq(2). ||. a+6d-a-2d=23-7. ||. 4d=16 || d=4. ||. So,a=-1

ANSWER

What is quantum mechanics

Posted by Anurag Maurya???? 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Priyanshu Kumar ????? 6 years ago

Quantum mechanics is a branch of physics that deal with the property of quanta . Quanta is a small packet of fixed energy which is generally in Indiscontinous manner .

ANSWER

In equation p(q-r)x^,+q,(r-p)x^+r(p-q)=0to show that 1/p+1/r=2/q

Posted by Rajan Chaudhary 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Make a story of 3 sides closed figure

Posted by Harshita Naagar 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

If a line divides any two sides of atriangle in the same ratio, then the line is parallel to the third side. Prove that?

Posted by Harshi Singh 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Ncert optional exercise chapter coordinate geometry questions 1

Posted by Abhishek Gupta 6 years ago

CBSE > Class 10 > Mathematics

1 answers

Drip ? Drop? 6 years ago

Question type kar na

ANSWER

If sinQ + cosQ = √2. Find the value of tanQ

Posted by Prashant Baghel 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Ek Triangle ABC me ek circle h Radius 4cm Side AC and AB find karo Circle point on tangent are PQR h

Posted by Vivek Kumar 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

A no. when divided by 259 gives a remainder 89. What is the remainder when the same no. is divided by 37? Answer plz? and plz send a full explanation!!!

Posted by ~ Honey...??#Girl 6 years ago

CBSE > Class 10 > Mathematics

3 answers

~ Honey...??#Girl 6 years ago

Thnx

Drip ? Drop? 6 years ago

259 ➗ 37 we get 3 quotient and 28 reminder

Sahil Singh 6 years ago

????

ANSWER

How we get 80 marks

Posted by Piyush Sharma 6 years ago

CBSE > Class 10 > Mathematics

4 answers

Drip ? Drop? 6 years ago

To follow NCERT ,and done many of questions

~ Honey...??#Girl 6 years ago

Read NCERT properly. Do meditation also and try to practice mathematical question as far as u can. And prefer Oswal too

Aryan Pandey 6 years ago

You can get 80 marks by using your brain..

Kumkum Sarswat 6 years ago

Hardwork,hardwork and hardwork.??

ANSWER

X^4+X^2+1 factorise

Posted by Sk Kmr 6 years ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

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