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Questions  

The number of points intersection of the two curves y=2sinx and y=5x2+2x+3  is 

a
0
b
1
c
2
d

detailed solution

Correct option is A

We have y=5x2+2x+3=5x2+25x+35                            =5x+152+35−125=5x+152+145>2Since y=2sinx≤2, so there cannot be any point of intersection.

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