2.*
1 point
यदि cos (a + B)= 0 हो, तो sin (a-B) को निम्नलिखित के रूप में
बदला जा सकता है
If cos (a +B)= 0, then sin (a-B) can be reduced to
(A) cosB
(B) cos28
(C) sina
(D) sin 2a
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Answer:
c (sin a) is the correct answer according to my opinion..
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