Question

Prove 1- tan theta/1+ tan theta= cos theta- sin theta

Answer 1

Answer:

Given, edxdy​=x+1

dxdy​=log(x+1)  

Integrating both sides  

y=∫log(x+1)dx.

Put x+1=t⇒dx=dt  

y=∫logtdt=tlogt−t+c

⇒y=(x+1)log(x+1)−(x+1)+c

Put x=0,y=3⇒c=4  

∴y=(x+1)log(x+1)−x+3

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

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