Math, asked by sheldon4358m, 7 months ago

Prove that: 2 sec2 x - sec4x-2 cosec2 x + cosec4 x =I -tan8÷4tanx ​

Answers

Answered by parisethi2203
0

Left side:

1

sin

4

x

cos

4

x

sin

4

x

=

1

cos

4

x

sin

4

x

=

=

(

1

cos

2

x

)

(

1

+

cos

2

x

)

sin

4

x

=

(

sin

2

x

)

(

1

+

cos

2

x

)

sin

4

x

=

1

+

cos

2

x

sin

2

x

=

1

sin

2

x

+

cos

2

x

sin

2

x

=

=

csc

2

x

+

cot

2

x

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