Is tan(x)(2-cos(x))^2=0 ?

The answer to whether tan(x)(2-cos(x))^2=0 is False

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prove tan(x)(2-cos(x))^2=0

prove

tan (x) (2 - cos (x))^{2} = 0

False

Solution steps

tan (x) (2 - cos (x))^{2} = 0

Show that the two sides are not equal

For

tan (x) (2 - cos (x))^{2} = 0

plug in

x = 1

tan (1) (2 - cos (1))^{2} = 3.31839 \dots

tan (1) (2 - cos (1))^{2}

Refine to a decimal form

= 3.31839 \dots

The two sides are not equal

\Rightarrow False

sin (A) = csc (A) tan (A)

sec (A) csc (A) = sec (A) cot (A)

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

\frac{1}{cos ( x )} - sin (x) tan (x) = cos (x)

cos^{2} (\frac{x}{2}) = \frac{1 + cos ( x )}{2}