Question

If 5x = sec θ and 5/y = tan θ, then find the value of
5 ( x
² – 1/y² )​

Answer 1

⇒5x=secθ and

x

5

=tanθ

then 5(x

2

−

x

2

1

)=

5

25

(x

2

−

x

2

1

)

⇒

5

1

(25x

2

−

x

2

25

)

⇒

5

1

(sec

2

θ−tan

2

θ)

⇒

5

1

(

cos

2

θ

1

−

cos

2

θ

sin

2

θ

)=

5

1

[

cos

2

θ

1−sin

2

θ

]

⇒

5

1

(

cos

2

θ

cos

2

θ

)=

5

1

this is the correct answer

Answer 2

Answer:

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Step-by-step explanation:

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