sec (70° - θ) = cosec (20° + θ)
4 Likes
Given equation : sec (70° - θ) = cosec (20° + θ)
Solving L.H.S.
⇒ sec (70° - θ)
⇒ sec [90° - (20° + θ)]
By formula,
sec (90° - θ) = cosec θ
⇒ cosec (20° + θ)
Since, L.H.S. = R.H.S.
Hence, proved that sec (70° - θ) = cosec (20° + θ).
Answered By
3 Likes
Evaluate:
3 cos 80° cosec 10° + 2 cos 59° cosec 31°
Prove that :
tan (55° + x) = cot (35° - x)
sin(28° + A) = cos(62° - A)