Advertisements
Advertisements
Question
Verify the following equalities:
sin2 60° + cos2 60° = 1
Sum
Advertisements
Solution
sin 60° = `sqrt(3)/2`, cos 60° = `1/2`
L.H.S = sin2 60° + cos2 60°
= `(sqrt(3)/2)^2 + (1/2)^2`
= `3/4 + 1/4`
= `4/4`
= 1
L.H.S = R.H.S
Hence it is proved.
shaalaa.com
Is there an error in this question or solution?
