Question

Buktikan trigonometri dari sinx +tan x/cot x+cosec x = sin x.tanx

Answer 1

(sinx.cosx/cosx) + (sinx/cosx) / (cosx/sinx+1/sinx)
= {(sinx.cosx + sinx)/cosx} / {(cosx+1)/sinx}
= {(sinx(cosx+1)/cosx} × {sinx/(cosx+1)}
= (sinx/cosx) × sinx
= tan x sin x