Question

sin A-COS A +1
sin A+ cos A-1 sec A-tan A
1
Prove that​

Answer 1

Answer:

Answer

sinA+cosA−1

sinA−cosA+1

=

sinA−(1−cosA)

sinA+(1−cosA)

=

2sin

2

A

cos

2

A

−2sin

2

2

A

2sin

2

A

cos

2

A

+2sin

2

2

A

=

cos

2

A

−sin

2

A

cos

2

A

+sin

2

A

=

cot

2

A

+1

cot

2

A

−1

=cot(

4

π

−

2

A

)

=

sin(

4

π

−

2

A

)×sin(

4

π

−

2

A

)

cos(

4

π

−

2

A

)×sin(

4

π

−

2

A

)

=

1−cos(

2

π

−A)

sin(

2

π

−A)

=

1−sinA

cosA

=

secA−tanA

1

hope it's help you!!!

Answer 2

Answer:

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