Question

sin²a+1/tan²a=1 prove​

Answer 1

Answer:

to prove that it is equal to 1

Step-by-step explanation:

we know,

1 + tan 2 a = sec 2a

now

sin 2 a + 1 / 1+tan 2 a

= sin 2 a + 1 / sec 2 a [from 1]

= sin2 a + cosine2a [since 1 / sec2 a = cosine2 a]

= 1 [using identity]

hence proved

^a

!