1. Simpilfy the following expression as much as possible: $$ \frac{-5 \sin ^{2} A+5}{2 \cos A} $$ INSTRUCTION: If you need to type a trigonometric expression, put brackets around the angle. For example: sin(A) or cos(A). Answer: The simplified expression is

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Calculate or simplify the expression $$ \frac{-5 \sin ^{2} A+5}{2 \cos A} $$.
Simplify the expression by following steps:
- step0: Solution:
  $$\frac{-5\sin^{2}\left(A\right)+5}{2\cos\left(A\right)}$$
- step1: Transform the expression:
  $$\frac{5\cos^{2}\left(A\right)}{2\cos\left(A\right)}$$
- step2: Reduce the fraction:
  $$\frac{5\cos\left(A\right)}{2}$$
The simplified expression is $$\frac{5\cos(A)}{2}$$.
The simplified expression is $$ \frac{5\cos(A)}{2} $$.

1. Simpilfy the following expression as much as possible: \[ \frac{-5 \sin ^{2} A+5}{2 \cos A} \] INSTRUCTION: If you need to type a trigonometric expression, put brackets around the angle. For example: sin(A) or cos(A). Answer: The simplified expression is

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