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Questions 54 ,full sollution required....................

Questions 54 ,full sollution required.................... 

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1 Answers

Aditya Gupta
2081 Points
4 years ago
sin7x= cos2x= sin(90 – 2x)
so, 7x= 90 – 2x
or x= 10
so, 2sin3x – root3*tan3x= 2sin30 – root3*tan30
= 2*1/2 – root3*1/root3
= 0, so option 2 is correct
kindly approve :)

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