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Qn #461
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If $B=sin^2 y+cos^4 y$, then for all real y
A.
$$\frac{13}{16}{\leq B\leq1}$$
B.
$$1\leq B \leq2$$
C.
$$\frac{3}{4}{\leq B\leq1}$$
D.
$$\frac{3}{4}{\leq B \leq \frac{13}{16}}$$
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❓ Question: If $B=sin^2 y+cos^4 y$, then for all real y... | TANCET Group Studies | Tancet Group Studies