Is (1-cos^2(x))/(cos(x))=tan(x)sin(x) ?

The answer to whether (1-cos^2(x))/(cos(x))=tan(x)sin(x) is True

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prove (1-cos^2(x))/(cos(x))=tan(x)sin(x)

prove

\frac{1 - cos ^{2} ( x )}{cos ( x )} = tan (x) sin (x)

True

Solution steps

\frac{1 - cos ^{2} ( x )}{cos ( x )} = tan (x) sin (x)

Manipulating right side

tan (x) sin (x)

Express with sin, cos

sin (x) tan (x)

Use the basic trigonometric identity:

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

= sin (x) \frac{sin ( x )}{cos ( x )}

Simplify

sin (x) \frac{sin ( x )}{cos ( x )} : \frac{sin ^{2} ( x )}{cos ( x )}

sin (x) \frac{sin ( x )}{cos ( x )}

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{sin ( x ) sin ( x )}{cos ( x )}

sin (x) sin (x) = sin^{2} (x)

sin (x) sin (x)

Apply exponent rule:

a^{b} \cdot a^{c} = a^{b + c}

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

= sin^{1 + 1} (x)

Add the numbers:

1 + 1 = 2

= sin^{2} (x)

= \frac{sin ^{2} ( x )}{cos ( x )}

= \frac{sin ^{2} ( x )}{cos ( x )}

= \frac{sin ^{2} ( x )}{cos ( x )}

Rewrite using trig identities

\frac{sin ^{2} ( x )}{cos ( x )}

Use the Pythagorean identity:

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

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

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

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

We showed that the two sides could take the same form

\Rightarrow True

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

\frac{cot ( x ) tan ( x )}{sin ( x )} = csc (x)

tan (6 a) sec (3 a) = 2 sin (3 a) sec (6 a)

(1 - sin^{2} (a)) (1 + tan^{2} (a)) = 1

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

Is (1-cos^2(x))/(cos(x))=tan(x)sin(x) ?
The answer to whether (1-cos^2(x))/(cos(x))=tan(x)sin(x) is True