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समीकरण (sin x - sin 7x)/(cos 7x - cos x)...

समीकरण `(sin x - sin 7x)/(cos 7x - cos x) = tan 6x` को संतुष्ट करने वाले x का लघुतम धनात्मक मान (डिग्री में) है : (i) `9^(@)` ; (ii) `12^(@)` ; (iii) `18^(@)` ; (iv) `20^(@)`

A

`9^(@)`

B

`12^(@)`

C

`18^(@)`

D

`20^(@)`

लिखित उत्तर

Verified by Experts

The correct Answer is:
A
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