Solve for t (sec(t)-cos(t))/(sec(t))=(f(t))^2

$\frac{\sec (t) - \cos (t)}{\sec (t)} = {(f (t))}^{2}$

Simplify the left side.

Simplify $\frac{\sec (t) - \cos (t)}{\sec (t)}$ .

Rewrite $\sec (t)$ in terms of sines and cosines.

$\frac{\frac{1}{\cos (t)} - \cos (t)}{\sec (t)} = {(f t)}^{2}$

Rewrite $\sec (t)$ in terms of sines and cosines.

$\frac{\frac{1}{\cos (t)} - \cos (t)}{\frac{1}{\cos (t)}} = {(f t)}^{2}$

Multiply the numerator by the reciprocal of the denominator.

$(\frac{1}{\cos (t)} - \cos (t)) \cos (t) = {(f t)}^{2}$

Apply the distributive property.

$\frac{1}{\cos (t)} \cos (t) - \cos (t) \cos (t) = {(f t)}^{2}$

Cancel the common factor of $\cos (t)$ .

Cancel the common factor.

$\frac{1}{\cos (t)} \cos (t) - \cos (t) \cos (t) = {(f t)}^{2}$

Rewrite the expression.

$1 - \cos (t) \cos (t) = {(f t)}^{2}$

Multiply $- \cos (t) \cos (t)$ .

Raise $\cos (t)$ to the power of $1$ .

$1 - (\cos^{1} (t) \cos (t)) = {(f t)}^{2}$

Raise $\cos (t)$ to the power of $1$ .

$1 - (\cos^{1} (t) \cos^{1} (t)) = {(f t)}^{2}$

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$1 - {\cos (t)}^{1 + 1} = {(f t)}^{2}$

Add $1$ and $1$ .

$1 - \cos^{2} (t) = {(f t)}^{2}$

Apply pythagorean identity.

$\sin^{2} (t) = {(f t)}^{2}$

Simplify the right side.

Apply the product rule to $f t$ .

$\sin^{2} (t) = f^{2} t^{2}$

Subtract $f^{2} t^{2}$ from both sides of the equation.

$\sin^{2} (t) - f^{2} t^{2} = 0$