Question

2sin^2(30°)+3cos^2(60°)-tan^2(60°)=?​

Answer 1

Step-by-step explanation:

2(1/2)^2+3(1/2)^2-(√3)2

=2×1/4 +3×1/4-3

=1/2+3/4-3

=2/4+3/4-3

=2+3/4-3

=5/4-3

=5/4-12/4

=5-12/4

=-7/4

2(sin^230°)+3(cos^260°)-(tan^260°)=-7/4

Answer 2

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