Math, asked by sanja128ozm0np, 1 year ago

sin3x+sin2x=cosx/2 english

Answers

Answered by sriram77

hey in the lhs you will apply sinA+sinB
which is equal to 2sin(A+B)/2cos(A-B)/2
after applying the formula
you will get
2sin(5x/2)cos(x/2)=cosx/2
after this you will be left with
2sin(5x/2)=0
sin(5x/2)=0
after this apply the general solution formula

sriram77: welcome

Previous Question

Next Question

Similar questions

Math, 7 months ago

(b) There are 248 children in junior section and 395 children in the senior section.

English, 7 months ago

2. "Could you do it again?" What does the speaker want Matilda to do? Why does she ask her to do it 'again'?

English, 7 months ago

Throughout arunima's life,everything had come easy. true or false...

History, 1 year ago

india ka kab distribute kiya gya?

Math, 1 year ago

A wire is in the shape of a square of side 10cm If the wire is rebent into a rectangle of length 12cm, find its breadth Which encloses more area , the square or the rectangle...

Math, 1 year ago

Factorise the expressions and divide them as directed. (i) (y 2 + 7y + 10) ÷ (y + 5) (ii) (m 2 − 14m − 32) ÷ (m + 2) (iii) (5p 2 − 25p + 20) ÷ (p − 1) (iv) 4yz(z 2 + 6z − 16) ÷ 2y(z + 8) (v) 5pq(p 2 − q 2 ) ÷ 2p(p + q) (vi) 12xy(9x 2 − 16y 2 ) ÷ 4xy(3x + 4y) (vii) 39y 3 (50y 2 − 98) ÷ 26y 2 (5y+ 7)...

India Languages, 1 year ago

I want self introduction in Sanskrit, in 80 words. My name is anjali kumari, my fathers name is nand patel , I read in class 6 in section b,my school name is Patna convent.i have four sister and one brother. My birth place is gopalgang district.my father is government employs.my mother is housewife...

English, 1 year ago

Your friend has fallen into bad company. He is spending more and more time with his new friends and drifting away from studies. With your partner, discuss the problem and decide how you could help your friend(1oo-200 words),use terms like 'in my opinion', 'I think '.plz help me its very urgent..