Question

40 4) If cot titha=40/9 find the value of cosec titha ​

Answer 1

Answer:

Given,

cotθ=

3

1

⇒cotθ=cot60

o

⇒θ=60

o

∴(

2−sin

2

θ

1−cos

2

θ

)

Putting the value of θ we get,

=

2−sin

2

60

o

1−cos

2

60

o

=

2−(

2

3

)

2

1−(

2

1

)

2

=

2−

4

3

1−

4

1

=

4

8−3

4

4−1

=

4

5

4

3

=

5

3

.