Q. 595.0( 1 Vote )

# Mark (√) against the correct answer in the following:

If the function is continuous at x = 0 and then k = ?

A. 1

B. 2

C.

D.

Answer :

Given:

⇒ is continuous at x = 0.

⇒ 1-cos4x = 2sin^{2}2x

⇒ f(x) = 1

∴ Kk= 1

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Is a continuous function?

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