Question

find value of cos square theta 30 degree -sin square theta 30 degree
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Answer 1

Step-by-step explanation:

Cos²30°--Sin²30°

( v3/2)² -- (1/2)²

=3/4 -- 1/4

= 2/4

= 1/2

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Answer 2

Answer:

$\cos(30) { } ^{2} - \sin(30) {}^{2}$

$( \sqrt{3} \div 2 ) - 1 \div 2$

3/4-1/4=2/4=1/2