Math, asked by SwapneelMukherjee, 8 months ago

CUS 20
sin 0 + cose
= 2 sino
(vi) cotx cos2x - tan x sin²x
2 cot2x
(vii)
sec8a - 1
sec4a-1
tan 8a
tan 2
viii) cos4x - cos4y = 8( cosx - cosy)( cosx
(cos x - siny
1 + COSA + cos2A
(ix)
= cotA
sin A + sin 2A
tan 5A + tan 3A
4 cos 4A cos 2 A
tan 5 A - tan 3A
(x)
(xi)
cos 30° - sin 20°
cos 40° + cos20°
4
cos 40° cos 80°
V3
xii) 4(cos 310° + sin320°) = 3( cos 10° + sin
iii) (cos3a sin3a + sinº a cos3Q) = sin 40​

Answers

Answered by subrato196811
0

Answer:

Itne easy nahi aate

lol................

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