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Prove the identity: $\tan{x}\cdot \sin{x}=\sec{x}-\cos{x}$
in Grade 12 Technical Maths by Diamond (40.1k points) | 9 views

1 Answer

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RHS,

let LCD = cosx

= 1/cosx - cosx

= (1- cos^x)/cosx

= (sin^x + cos^2x -cos^2x)/cosx

= sin^2x/cosx

= sinx/cosx X sinx

= tanx.sinx, proven
by Silver Status (31.3k points)

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asked Apr 26 in General Maths by Tedsf Diamond (40.1k points) | 12 views
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