Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 Mathematics Differential Calculus Second Order Derivatives
यदि f(x) = ecos x है, तोf"(x) का मान ज्ञात कीजिए?
1
ecos x(sin2 x - cos x)
2
ecosx.sin x (sin x - 1)
3
ecosx.cos x (cos x - 1)
4
ecosx.sin x (cos x + 1)