Prove that : cos20°/sin70° + cosθ/sin(90° - θ) = 2 - Sarthaks
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Prove that : cos20°/sin70° + cosθ/sin(90° - θ) = 2
Solve the following equations: (i) sin 5x – sin x = cos 3x (ii) 2
sin^(2) 20^(@) + sin^(2) 70^(@))/(cos^(2) 20^(@) + cos^(2) 70^(@)) +
3 Find the value of ( k , ) ( frac { cos 20 ^ { circ } } { sin 70
Prove that cos 20• / sin 70• + cos theta / sin ( 90 - theta ) = 2
सिद्ध कीजिए कि(cos theta)/(sin(90^(@)-theta))+(sin theta)/(cos(90^(@)-theta ))=2., 10
सिद्ध कीजिए कि(cos theta)/(sin(90^(@)-theta))+(sin
सिद्ध कीजिए कि(cos theta)/(sin(90^(@)-theta))+(sin
cos20/sin70 + 2costheta/sin (90-theta) = k/2 find k
cos70^(@), sin20^(@)], [sin70^(@), cos20^(@)]
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