$a^{2}+b^{2}+2 a b \cos \theta=1$ $c^{2}+d^{2}+2 c d \cos \theta=1$ and $a c+b d+(a d+b c) \cos \theta=0$ then $a^{2}+c^{2}=D%$ A) $\sec (2} \theta$ B) $\operatorname{cosec}^{2} \theta$ c) $\cot ^{2} \theta$ D) $\tan ^{2} \theta$
$a^{2}+b^{2}+2 a b \cos \theta=1$ $c^{2}+d^{2}+2 c d \cos \theta=1$ and $a c+b d+(a d+b c) \cos \theta=0$ then $a^{2}+c^{2}=D%$ A) $\sec (2} \theta$ B) $\operatorname{cosec}^{2} \theta$ c) $\cot ^{2} \theta$ D) $\tan ^{2} \theta$
Chapter1: Getting Started With Excel
Section: Chapter Questions
Problem 3.8CP
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