Question

Prove that tan^-1(x-1÷x-2)+tan^-1(x+1÷x+2)=π÷4
​

Answer 1

Answer:

SI

A

Amount - 8000

Rate 12%

Let year x

⇒ Amount = SI

A

+P

A

⇒

100

8000×12×x

B

Amount 9100

Rate 10%

let year x

Amount

B

=SI

B

+P

B

100

9100×10×x

⇒960x+8000=910x+9100

960x−910x=9100−8000

50x=1100

x=22

Answer 2

Answer:

haha ya eg sa hoga

this solve in formulaand using

identity