cot ∅ + tan ∅ = sec∅cosec∅
prove that L.H.S.=R.H.S.
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Step-by-step explanation:
L.H.S= cot x + tan x
=(1 / tanx) + tanx
=(1 + tan²x) / tanx
=sec²x/ tanx
=(1/ cosx)²/ (sinx / cosx)
=1 / (cosx)² × (cosx / sinx)
=(1 / cosx) × (1 / sinx)
=(sec x) (cosec x) = R.H.S
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