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Prove sin^2 π/6 + cos^2 π/3 - tan^2 π/4 = -1/2​
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23 votes
23 votes
Prove sin^2 π/6 + cos^2 π/3 - tan^2 π/4 = -1/2​

User Mavaze
by
2.6k points

1 Answer

10 votes
10 votes

=(

2

1

)

2

+(

2

1

)

2

−1

2

=

2

−1

Therefore, L.H.S = R.H.S

User Hervey
by
2.8k points
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