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neeta

· started a discussion

· 1 Months ago

can anyone give simpler solution? (Question: 351244.0 )

can anyone give simpler solution?

Question:

If A = (cos 12º – cos 36º)(sin 96º + sin 24º) and B = (sin 60º – sin 12º) (cos 48º – cos 72º), then what is  AB    equals to -

Options:
A)

–1

B)

1

C)

0

D)

2

Solution:

Ans: (b)


RAHUL PRASAD

· commented

· 1 Months ago

search for cos A + cos B , sin A + sin B, etc.
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