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Maths-

General

Easy

Question

$cos to the power of 6 space A plus sin to the power of 6 space A equals 1 minus k sin squared space left parenthesis 2 A right parenthesis not stretchy rightwards double arrow k equals$

$\frac{1}{4}$
$\frac{1}{2}$
$\frac{3}{4}$
1

The correct answer is: $3 over 4$

sol. $cos to the power of 6 space A plus sin to the power of 6 space A equals 1 minus 3 over 4 sin squared space 2 A$

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