Question

cot a + tan a = cosec a x sec a​

Answer 1

Answer:

LHS cotA+tanA

=

sinA

cosA

+

cosA

sinA

=

sinAcosA

cos

2

A+sin

2

A

=

sinAcosA

1

{∵sin

2

x+cos

2

x=1}

=cosecAsecA

=RHS Hence proved