Prove that : cos20°/sin70° + cosθ/sin(90° - θ) = 2 - Sarthaks

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Prove that : cos20°/sin70° + cosθ/sin(90° - θ) = 2

Prove that: sin 70°/cos 20° + cosec 20°/sec 70° - 2 cos 70° cosec

सिद्ध कीजिए कि(cos theta)/(sin(90^(@)-theta))+(sin

Prove that: sin 70°/cos 20° + cosec 20°/sec70° - 2 cos 70° cosec 20° sec 70°= 0

सिद्ध कीजिए कि : (cos 20 deg)/(sin 70 deg) + (cos

Prove that : cos20°/sin70° + cosθ/sin(90° - θ) = 2 - Sarthaks

Prove the following: i sin θ sin90o θ cos θ cos 90o θ=0 ii cos90o

2((cos 65^(@))/(sin 25^(@))) - (tan 20^(@))/(cot 70^(@)) - sin 90

cos^(2) 20^(@) + cos ^(2) 70^(@) + sin 48^(@) sec 42^(@) + cos 40^(@) cosec

सिद्ध करो: (sin 70^(@))/( cos 20^(@))+(cosec 20^(@))/( sec