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Qn #1621
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If $\sin x + \sin^{2}x = 1$, then $\cos^{2}x + \cos^{4}x$ is equal to.
A.
0
B.
1
C.
-1
D.
2
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❓ Question: If $\sin x + \sin^{2}x = 1$, then $\cos^{2}x + \co... | TANCET Group Studies | Tancet Group Studies