Mathematics: Prove : 1+cosa-sin2a/sina*(1+cosa)= cota

Prove : 1+cosa-sin2a/sina*(1+cosa)= cota

Ответ:

miajay14

13.03.2022

$\dfrac{1+\cos A-\sin^2A}{\sin A(1+\cos A)}=\cot A\\\\L_s=\dfrac{(1-\sin^2A)+\cos A}{\sin A(1+\cos A)}=\dfrac{\cos^2A+\cos A}{\sin A(1+\cos A)}\\\\=\dfrac{\cos A(1+\cos A)}{\sin A(1+\cos A)}=\dfrac{\cos A}{\sin A}=\cot A=R_s\\\\\text{Used:}\\\\\sin^2x+\cos^2x=1\to\cos^2x=1-\sin^2x\\\\\cot x=\dfrac{\cos x}{\sin x}$

0,0(0 оценок)

Ответ:

emilyarvin

23.01.2023

Mathematics

80n+20; You wanna know?
Well, since you only have to pay for every night and not everyday for the dog, 'a' is the correct answer.

0,0(0 оценок)

Prove : 1+cosa-sin2a/sina*(1+cosa)= cota

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Mathematics

Ask an AI advisor a question