What is expand (sec(A)-tan(A))^2 ?

The solution to expand (sec(A)-tan(A))^2 is sec^2(A)-2sec(A)tan(A)+tan^2(A)

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expand (sec(A)-tan(A))^2

expand

(sec (A) - tan (A))^{2}

sec^{2} (A) - 2 sec (A) tan (A) + tan^{2} (A)

Solution steps

(sec (A) - tan (A))^{2}

Apply Perfect Square Formula:

(a - b)^{2} = a^{2} - 2 ab + b^{2}

(sec (A) - tan (A))^{2} = sec^{2} (A) - 2 sec (A) tan (A) + tan^{2} (A)

= sec^{2} (A) - 2 sec (A) tan (A) + tan^{2} (A)

\frac{1}{( e ^{0.3 j} - 0.2 ) ( e ^{0.3 j} - 0.9 )}

\frac{x cot ( x ) ln ( x ) - ln ( sin ( x ) )}{( ln ( x ) ) ^{2}}

\frac{( x + 2 ) x ! + 2 ( x + 1 ) !}{x ! ( x + 1 ) !}

sec^{2} (x - y) (1 - \frac{d y}{d x})

What is expand (sec(A)-tan(A))^2 ?
The solution to expand (sec(A)-tan(A))^2 is sec^2(A)-2sec(A)tan(A)+tan^2(A)