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[(1-tan^(2)30^(@))div(1+tan^(2)30^(@))]-...

`[(1-tan^(2)30^(@))div(1+tan^(2)30^(@))]-sin30^(@)=`A)-1 B)0 C)1 D)2

A

-1

B

0

C

1

D

2

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The correct Answer is:
B
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MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MCQs
  1. prove that: sin^2 3 0^(@)+sin^2 4 5^(@)+sin^2 6 0^(@)=3/2

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  2. prove that: 4 cot^2(45^ @) - sec^2(60^ @)+ sin^2(30^ @) = 1/8

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