What is expand (19sin(x)-1)(19sin(x)+1) ?

The solution to expand (19sin(x)-1)(19sin(x)+1) is 361sin^2(x)-1

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expand (19sin(x)-1)(19sin(x)+1)

expand

(19 sin (x) - 1) (19 sin (x) + 1)

361 sin^{2} (x) - 1

Solution steps

(19 sin (x) - 1) (19 sin (x) + 1)

Apply Difference of Two Squares

(19 sin (x) - 1) (19 sin (x) + 1) : 361 sin^{2} (x) - 1

= 361 sin^{2} (x) - 1

\frac{2 ( 3 339 - 55 )}{5}

3 (\frac{π}{4} + \frac{1}{2})

(- sin (2 t) - 3 sin (t))^{2}

x^{\frac{1}{2}} (4 x - 4)

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

What is expand (19sin(x)-1)(19sin(x)+1) ?
The solution to expand (19sin(x)-1)(19sin(x)+1) is 361sin^2(x)-1