यदि (f(x)=\sin x) और (g(x)=\cos x) हैं, तो (\(f^2+g^2\)(x)) क्या होगा?
If (f(x)=\sin x) and (g(x)=\cos x), what is (\(f^2+g^2\)(x))?
Explanation opens after your attempt
A. (1)
Concept
(\(f^2+g^2\)(x)=\sin-2 x+\cos-2 x=1). Remember the trigonometric identity.
Why this answer is correct
The correct answer is A. (1). (\(f^2+g^2\)(x)=\sin-2 x+\cos-2 x=1). Remember the trigonometric identity.
Exam Tip
(\(f^2+g^2\)(x)=\sin-2 x+\cos-2 x=1)। त्रिकोणमितीय पहचान याद रखें।
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