Class CBSE Class 12 Mathematics Derivatives Q #1696
KNOWLEDGE BASED 1 Marks 2026 AISSCE(Board Exam) MCQ SINGLE
Derivative of $\cos^{-1}(\frac{\sin x+\cos x}{\sqrt{2}})$, $-\frac{\pi}{4}
(A) $-1$
(B) 1
(C) $\frac{\pi}{4}$
(D) $-\frac{\pi}{4}$