Question

Express the ratios cos A , tan A , sec A in terms of sin A Pls answer soon.... Will mark u as brainliest

Answer 1

cosA=

1−sin

2

A

​

→(1)

as, cos

2

θ+sin

2

θ=1

tanA=

cosA

sinA

​

=

1−sin

2

A

​

sinA

​

( from (1) )

& secA=

cosA

1

​

=

1−sin

2

A

​

1

​

( From (1) )

so, cosA=

1−sin

2

A

​

,tanA=

1−sin

2

A

​

sinA

​

& secA=

1−sin

2

A

​

1

​