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 = 2sin22x
⇒ f(x) = 1
∴ Kk= 1
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