જો f(x) = frac{cos^2 x + sin^4 x}{sin^2 x + c | vedclass

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(A) આપેલ વિધેય $f(x) = \frac{\cos^2 x + \sin^4 x}{\sin^2 x + \cos^4 x}$ છે.આપણે જાણીએ છીએ કે $\sin^2 x = 1 - \cos^2 x$ અને $\cos^2 x = 1 - \sin^2 x$.અ

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$1$

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(A) આપેલ વિધેય $f(x) = \frac{\cos^2 x + \sin^4 x}{\sin^2 x + \cos^4 x}$ છે.આપણે જાણીએ છીએ કે $\sin^2 x = 1 - \cos^2 x$ અને $\cos^2 x = 1 - \sin^2 x$.અંશમાં આ કિંમતો મૂકતા:અંશ $= \cos^2 x + \sin^4 x = \cos^2 x + \sin^2 x (\sin^2 x) = \cos^2 x + \sin^2 x (1 - \cos^2 x) = \cos^2 x + \sin^2 x - \sin^2 x \cos^2 x = 1 - \sin^2 x \cos^2 x$.તે જ રીતે,છેદ માટે:છેદ $= \sin^2 x + \cos^4 x = \sin^2 x + \cos^2 x (\cos^2 x) = \sin^2 x + \cos^2 x (1 - \sin^2 x) = \sin^2 x + \cos^2 x - \sin^2 x \cos^2 x = 1 - \sin^2 x \cos^2 x$.આમ,$f(x) = \frac{1 - \sin^2 x \cos^2 x}{1 - \sin^2 x \cos^2 x} = 1$,તમામ $x \in R$ માટે.તેથી,$f(2002) = 1$.

જો $f(x) = \frac{\cos^2 x + \sin^4 x}{\sin^2 x + \cos^4 x}$,$x \in R$ માટે,તો $f(2002)$ ની કિંમત કેટલી થાય?

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