Is sqrt(cos^2(2x)+1+sin(2))=2 ?

The answer to whether sqrt(cos^2(2x)+1+sin(2))=2 is False

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prove sqrt(cos^2(2x)+1+sin(2))=2

prove

cos^{2} (2 x) + 1 + sin (2) = 2

False

Solution steps

cos^{2} (2 x) + 1 + sin (2) = 2

Show that the two sides are not equal

For

cos^{2} (2 x) + 1 + sin (2) = 2

plug in

x = 0

cos^{2} (2 \cdot 0) + 1 + sin (2) = 1.70566 \dots

cos^{2} (2 \cdot 0) + 1 + sin (2)

Refine to a decimal form

= 1.70566 \dots

The two sides are not equal

\Rightarrow False

p ro v e sin (3 x) = 2 \cdot sin (\frac{3 x}{2}) \cdot cos (\frac{3 x}{2})

p ro v e (cot (x) + tan (x))^{2} = sec^{2} (x) csc^{2} (x)

p ro v e 6 sin (\frac{5 π}{6}) = 2 + 2 sin (\frac{5 π}{6})

p ro v e \frac{0}{sin ( x ) cos ( x )} = 0

p ro v e \frac{sin ( x )}{1 - cos ( x )} = 1

Is sqrt(cos^2(2x)+1+sin(2))=2 ?
The answer to whether sqrt(cos^2(2x)+1+sin(2))=2 is False