Question

Find the value of above Statement​

Answer 1

Hii

you are welcome in my ans

sin7π/4 = sin(π+3π/4)= = - sin(π - π/4) = -1/sqrt2

sin π/4 = 1/sqrt2

sin(3π/4) = 1/sqrt2

sin ( π+π/4) = -1/sqrt2

so

-1*1*1*(-1)/sqrt2*sqrt2*sqrt2*sqrt2

= 1/4

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Hope it may helps you