Is ((1-sin(a)))/(cos(a))=cos(a) ?

The answer to whether ((1-sin(a)))/(cos(a))=cos(a) is False

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prove ((1-sin(a)))/(cos(a))=cos(a)

prove

\frac{( 1 - sin ( a ) )}{cos ( a )} = cos (a)

False

Solution steps

\frac{1 - sin ( a )}{cos ( a )} = cos (a)

Show that the two sides are not equal

For

\frac{1 - sin ( a )}{cos ( a )} = cos (a)

plug in

a = 1

\frac{1 - sin ( 1 )}{cos ( 1 )} = 0.29340 \dots

\frac{1 - sin ( 1 )}{cos ( 1 )}

Refine to a decimal form

= 0.29340 \dots

cos (1) = 0.54030 \dots

cos (1)

Refine to a decimal form

= 0.54030 \dots

The two sides are not equal

\Rightarrow False

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sin^{4} (t) - cos^{4} (t) = 1 - 2 cos^{2} (x)

csc^{2} (A) = 1 + tan^{2} (A)

3 tan^{2} (x) = 3 (tan (x))^{2}

3 cos (θ) = 3 sin (- θ)

Is ((1-sin(a)))/(cos(a))=cos(a) ?
The answer to whether ((1-sin(a)))/(cos(a))=cos(a) is False