Question

if 10 theta = 1/ root 7
show that cosec ² theta - sec ²theta
upon cosec²theta + sec²theta =3/4​

Answer 1

Step-by-step explanation:

tanθ=

7

1

⇒cotθ=

7

∴sec

2

θ=(1+tan

2

θ)=1+

7

1

=

7

8

and cosec

2

θ=(1+cot

2

θ)=1+7=8.

∴

cosec

2

θ+sec

2

θ

cosec

2

θ−sec

2

θ

=

8+

7

8

8−

7

8

=

64

48

=

4

3

.

Answer 2

Answer:

Trignometric Ratios: sine, cosine, tangent of an angle and their reciprocals.