How do you show that cos 2θ = 1 – 2 sin^2 θ?
Answer:
See explanation…
Explanation:
Given that:
and,
\(\cos ^{2} \theta+\sin ^{2} \theta=1\)we find,
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Answer:
See explanation…
Explanation:
Given that:
and,
\(\cos ^{2} \theta+\sin ^{2} \theta=1\)we find,