Question

find the value of 4 sin ²30-4 cos ²60
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Answer 1

Step-by-step explanation:

I hope this will help u..

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Answer 2

Answer:

sin 30 = 1/2

cos 60 = 1/2

so 4 sin2 30 - 4 cos2 60

= 4× 1/2 all square - 4 ×1/2 all square

so the answer will be zero