Math, asked by mahwish270603, 1 year ago

Without using trigonomeyric table, find the value of 4(sin^4 30+ cos^4 60) - 3(cos^2 45 - sin^2 90)

Answers

Answered by messiah2k16

1

4×(1/8+1/8)-3 (1/2-1)

gives 5/2

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