Q.
Total number of solutions for the equation x2−3sinx−π6=3 is (where [.] denotes the greatest integer function)
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a
1
b
2
c
3
d
4
answer is B.
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Detailed Solution
Given that x2−3sinx−π6=3Given equation can be written as x2−3=3sinx−π6Hence, x2−3=−3,0,3⇒x=0,x=3 is only solution if x =-3 then 0= sin x-π6 ⇒ 0≤sinx-π6<1 , which is not posible for x=-3 similarly x=±6 does not satisfy the equation
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