cos38 cos52-sin38 sin52=0
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Answered by
9
Answer:
cos38 sin(90-52) - sin38 cos(90 - 52 ) = 0
cos38 sin38 - sin38 cos 38 = 0
0 = 0
Hence ,
LHS = RHS,
proved.
Answered by
7
cos 38 cos52-sin38sin52=0
cos (90-38)cos (90-52)-sin38sin52=0
sin 52sin38-sin38 sin52=0
0=0
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