Trigonometry Identities Quiz

$Sin(x+1)$ = $Sinx Cosy + Siny Cosx$ $Cos(x-9)$ = $Cosa Cosy + sinx siny$ $Cos 2x$ = $Cos²x - Sin²x$ $Cos-x$ = $Cosx Sinx$

$Sin² 0 + Cos² 0 - 1$ = 1 $tan² 0 + 1$ = $Sec² 0$ $Cos²e + Cot² 0 - csc²e$ = 1 $Sin (x-9)$ = $Sinx Cosy Siny Cosx$

$Sin(x) - sin(-x)$ = $2sinxcosx$ $Cos (X+1)$ = $CosX Cosy - SinX Siny$ $COS 2X$ = $Cos²x - Sin²x$ $Sin (x+1)$ = $Sinx Cosy + Siny Cosx$

<p>$Sin(x-9) = Sinx cosy siny cosx$ = $2sinxcosx$ $Sin 2x = 2 sinxcosx$ = $Sin x cosy + siny cosx$ $Cos(x-9) = cosa cosy + sinx siny$ = $cos² x-1$ $Cos 2X = Cos² x - Sin² x$ = $Cos x sin x 1-2 sin² x</p> Signup and view all the answers

<p>$11 Sine$ = $Sin(x+1)$ $Sine Sin (x+1)$ = $Sinx Cosy + Siny CosX$ $cos (X+1) = cosX cosy cosX$ = $cos (X-9)$ $ = $cos 2X = cos² X 2</p> Signup and view all the answers