Math, asked by sadiqulkhan505, 9 days ago

দেখুওৱা যে cos 38° cos 52°-Sin 38° sin 52°

Answers

Answered by jagmohan92

Cos (90-@) = sin@ , so using this
cos 38 = cos(90-52) = sin52
Cos 52 = cos (90-38) = sin38 finally we got
Cos38 cos52 - sin38 sin52
= sin52 sin38 - sin38 sin52
= 0 answer

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দেখুওৱা যে cos 38° cos 52°-Sin 38° sin 52° ​

Answers

দেখুওৱা যে cos 38° cos 52°-Sin 38° sin 52°