Problem

What is the value of \( x \) ? \[ \sin (x+11)^{\circ}=\cos (2 x+22)^{\circ} \] Enter your answer in the box. \[ x=(1) \]

Solution

Step 1 :\sin{(x+11)^{\circ}}=\cos{(90^\circ-(x+11)^\circ)}

Step 2 :\cos{(90^\circ-(x+11)^\circ)}=\cos{(2x+22)^\circ}

Step 3 :90^\circ-(x+11)^\circ=2x+22^\circ

Step 4 :x=\frac{57^\circ}{3}

From Solvely APP
Source: https://solvelyapp.com/problems/18368/

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