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Qn #1846
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If $A = \cos^2\theta + \sin^4\theta$, then for all values of $\theta$:
A.
$1 \le A \le 2$
B.
$\dfrac{13}{16} \le A \le 1$
C.
$\dfrac{3}{4} \le A \le \dfrac{13}{16}$
D.
$\dfrac{3}{4} \le A \le 1$
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❓ Question: If $A = \cos^2\theta + \sin^4\theta$, then for all... | TANCET Group Studies | Tancet Group Studies