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sin 4 theta * sin 6 theta =...

` sin 4 theta * sin 6 theta =`

A

`1/2[ cos 2 theta - cos 10 theta ]`

B

`1/2[ cos 2 theta + cos 10 theta ]`

C

`1/2[ sin theta - cos 10 theta ]`

D

`1/2[ sin theta +cos 10 theta ]`

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A
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DIPTI PUBLICATION ( AP EAMET)-TRIGONOMETRIC RATIOS AND IDENTITIES -EXERCISE 2 ( SPEICAL TYPE QUESTIONS ) SET -4
  1. sin 4 theta * sin 6 theta =

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  11. A : cos 40^(@) cos 80^(@) cos 160^(@) =-1//8 R : cos theta cos (120...

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