Is it necessary to simplify the answer like this? :/ If so, how do we get that?

7. $2 \sqrt{c o t (x^{2})}$

Question

Is it necessary to simplify the answer like this? :/ If so,
how do we get that?

7 2 c o t ( x 2 )

Neha Sethi · Accepted Answer

Dear student
It depends upon the weightage of the question
If the question comes forless than or equal to 3 than you can do till II last step
But if it comes for more than 3 marks then simplify it
We have,-2xcosec2x2cotx2=-2xsin2x2cosx2sinx2=-2xsin2x2sin2x22sinx2sinx2   ∵sin2A=2sinA cosA=-2xsin2x2sin2x22sin2x2=-22xsinx2sin2x2
Regards

Is it necessary to simplify the answer like this? :/ If so, how do we get that? 7. 2 c o t ( x 2 )

Is it necessary to simplify the answer like this? :/ If so, how do we get that?

7. $2 \sqrt{c o t (x^{2})}$