Prove that SinA÷tanA=cosA

QAmmunity.org

My account
Edit my Profile
Private messages
My favorites

Ask a Question
Questions
Tags
Categories
Ask a Question

BlueMonkMN asked Aug 15, 2022

203,127 views

29 votes

Prove that
SinA÷tanA=cosA

Mathematics
college

BlueMonkMN asked Aug 15, 2022

by BlueMonkMN

3.3k points

0 Comments

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Your answer

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

2 Answers

28 votes

Explanation:

sinA/tanA

=>sinA ÷ sinA/cosA

=>sinA x cosA/sinA

=>cosA

Mark Gavagan answered Aug 17, 2022

by Mark Gavagan

2.3k points

0 Comments

Your comment on this answer:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

24 votes

Explanation:

Hey there!

LHS

$= ( \sin(a) )/( \tan(a) )$

$= \sin(a) * ( \cos(a) )/( \sin(a) )$

= cos A

Proved!!

Hope it helps!

Halona answered Aug 20, 2022

by Halona

2.4k points

0 Comments

Your comment on this answer:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Ask a Question

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers

0 Comments

Your comment on this question:

Your answer

2 Answers

0 Comments

Your comment on this answer:

0 Comments

Your comment on this answer:

Other Questions