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Question

$f (x) = min (sin x, cos x), x \in (- π, π)$ the values of $x$ where $f (x)$ is non differentiable, is the set $A$ . Then $A$ is subset of (A) ${\frac{- 3 π}{4}, \frac{- π}{4}, \frac{3 π}{4}}$ (B) ${\frac{- π}{4}, \frac{π}{4}, \frac{3 π}{3}}$ (C) ${\frac{- 3 π}{4}, \frac{3 π}{4}}$ (D) ${\frac{- 3 π}{4}, \frac{- π}{4}, \frac{π}{4}, \frac{3 π}{4}}$

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Michael Discussed

f (x) = min (sin x, cos x), x \in (- π, π)

the values of

x

where

f (x)

is non differentiable, is the set

A

. Then

A

is subset of (A)

{\frac{- 3 π}{4}, \frac{- π}{4}, \frac{3 π}{4}}

(B)

{\frac{- π}{4}, \frac{π}{4}, \frac{3 π}{3}}

(C)

{\frac{- 3 π}{4}, \frac{3 π}{4}}

(D)

{\frac{- 3 π}{4}, \frac{- π}{4}, \frac{π}{4}, \frac{3 π}{4}}

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Question Text	$f (x) = min (sin x, cos x), x \in (- π, π)$ the values of $x$ where $f (x)$ is non differentiable, is the set $A$ . Then $A$ is subset of (A) ${\frac{- 3 π}{4}, \frac{- π}{4}, \frac{3 π}{4}}$ (B) ${\frac{- π}{4}, \frac{π}{4}, \frac{3 π}{3}}$ (C) ${\frac{- 3 π}{4}, \frac{3 π}{4}}$ (D) ${\frac{- 3 π}{4}, \frac{- π}{4}, \frac{π}{4}, \frac{3 π}{4}}$
Answer Type	Video solution: 1
Upvotes	150