0 reads0 ratings0 helpful
If (f(x)=\sin x+\cos x) and (g(x)=\sin x-\cos x), what is ((f^2-g^2)(x))?यदि (f(x)=\sin x+\cos x) और (g(x)=\sin x-\cos x) हैं, तो ((f^2-g^2)(x)) क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (4\sin x\cos x)(4\sin x\cos x)
Using (f^2-g^2=(f-g)(f+g)), we get (2\cos x\cdot 2\sin x=4\sin x\cos x). Algebraic identities also apply to trigonometric functions.(f^2-g^2=(f-g)(f+g)) से (2\cos x\cdot 2\sin x=4\sin x\cos x)। बीजगणितीय पहचान त्रिकोणमितीय फलनों पर भी लागू होती है।
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
