solve : cos^ 2 π\8 + 4cos^2 π\ 3 - sec π \3 + 5tan^ 2 π\ 3 + sin^ 2 π\ 8 =?
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Dear I have taken pi/3 as 60° because it is 180÷3 =60.
As u know
cos 60 = 1/2
tan 60 = √3
sec 60 = 2
Also sin^2 theta + cos^2 theta = 1
Here in place of theta it is pi/8
As u know
cos 60 = 1/2
tan 60 = √3
sec 60 = 2
Also sin^2 theta + cos^2 theta = 1
Here in place of theta it is pi/8
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raksha12345:
thanks
Answered by
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mate✌✌✌
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