Verify cos60 = 1 - 2*sin^2 30
Answers
Answered by
1
hey hope it helps
LHS.
cos 60° = 1/2
RHS
2sin^2 30°
2((1/2)^2)
2*1/4
1/2
here lhs = rhs
verified
pls mark brainliest
LHS.
cos 60° = 1/2
RHS
2sin^2 30°
2((1/2)^2)
2*1/4
1/2
here lhs = rhs
verified
pls mark brainliest
Answered by
0
First take... 1 - 2 * sin^2 30°..
= 1 -2* (1/2)^2 (Sin30° = 1/2)
= 1 -2 * 1/4
= 1 -1/2
RHS = 1/2 = LHS
= 1 -2* (1/2)^2 (Sin30° = 1/2)
= 1 -2 * 1/4
= 1 -1/2
RHS = 1/2 = LHS
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