Math, asked by KarthikMT, 15 days ago

sin 91 + sin 1 / sin 91 - sin 1 =​

Attachments:

Answers

Answered by amitnrw
4

Given :  ( sin 91° + Sin 1° ) /  ( sin 91° - Sin 1° )  

To Find  : Simplify

Solution:

( sin 91° + Sin 1° ) /  ( sin 91° - Sin 1° )  

Sin C + Sin D = 2 Sin {( C  + D)/2} Cos{ (C - D)/2}

Sin C - Sin D = 2 Sin {( C  - D)/2} Cos {(C + D)/2}

( sin 91° + Sin 1° ) /  ( sin 91° - Sin 1° )  

=  2 Sin 46° Cos 45° / 2 Sin 45° Cos 46°

Cos 45°  = Sin 45°

=  Sin 46° /   Cos 46°

= Tan 46°

( sin 91° + Sin 1° ) /  ( sin 91° - Sin 1° )   = Tan 46°

Learn More:

Ifsin 990° sin 780° sin 390°+=K(tan 405° – tan 360°) then Kicos 540 ...

brainly.in/question/22239477

Maximum value of sin(cos(tanx)) is(1) sint (2)

brainly.in/question/11761816

evaluate cot[90-theta].sin[90-theta] / sin theta+cot 40/tan 50 - [cos ...

brainly.in/question/2769339

Similar questions