Math, asked by sushantdubey99, 1 month ago

tan(45°+A/2)=cosA/1-sinA

Answers

Answered by py5024131

0

Answer:

Answer

To prove :

secA

1+secA

=

1−cosA

sec

12

A

LHS

secA

1+secA

=

cosA

1

1+

cosA

1

=

cosA

1

cosA

cosA+1

=

cosA

cosA+1

×

1

cosA

=1+cosA

=1+cosA×

1−cosA

1−cosA

=

1−cosA

(1)

2

−(cosA)

2

=

1−cosA

1−cos

2

A

=

1−cosA

sin

2

A

=RHS

Step-by-step explanation:

Previous Question

Next Question

Similar questions

Math, 28 days ago

If Z = 1 + i root3, find the arg (z)...

Science, 28 days ago

Which of the following reaction is an example for chemical change...

Math, 28 days ago

An angle is greater than 45 degrees is its complementry angle grater than 45 degree or equal to or les than 45 degree...

English, 1 month ago

how many students does he teach daily?

Math, 1 month ago

the distance from church to school is 1.25km and the distance from school to home is 1.52 km how much longer is it from school to home than from church to school in meters...

Social Sciences, 9 months ago

Concering China make a project on one party government/ the governance in china...

Chemistry, 9 months ago

what is the action with metal carbonates and metal hydrogen carbonates...

English, 9 months ago

A body moving with a uniform acceleration had velocities of 20m/s and 30m/s when passing the points P and Q of its path .Find the velocity midway between P and Q (in m/s)...