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Evaluate 2sin^2 30° tan 60°-3cos^2 60°sec^2 …

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Evaluate 2sin^2 30° tan 60°-3cos^2 60°sec^2 30°
  • 1 answers

Gaurav Seth 4 years, 10 months ago

sin 30°=1/2=>sin^2 30°=1/4

cos 45°=1/root 2=>cos^2 45°=1/2

tan 60°=root 3=>tan ^2 60°=3

So, 2 sin ^2 30°-3cos^2 45° +tan^2 60°

=>2(1/4)-3(1/2)+3

=>1/2-3/2+3

=>(1-3+6)/2

=>4/2

=>2

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