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The number of values of the triple (a,b,...

The number of values of the triple (a,b,c) for which a `coss 2x+bsin^2 x+c`=0 is satisfied by all real x, is

A

0

B

2

C

3

D

infinite

Text Solution

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The correct Answer is:
D
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PATHFINDER-QUADRATIC EQUATION AND EXPRESSION-QUESTION BANK
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