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Chapter 6: Q. 18 (page 437)

If f(x)=sin xandf(a)= $\frac{3}{5}$ , findf(-a)

Short Answer

Expert verified

f(-a)= $\frac{- 3}{5}$

Step by step solution

Step 1. Given information

f(x)=sin x

f(a) = $\frac{3}{5}$

Step 2. Solving for a

Given $f (a) = \frac{3}{5} \Rightarrow a = 37 °$

Step 3. Solving of f(-a)

$f (- a) = f (- 37 °) = \sin (- 37 °) {\sin (- x) = - \sin x} \Rightarrow f (- a) = \frac{- 3}{5}$

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If f(x)=sin xandf(a)=35, findf(-a)

Short Answer

Step by step solution

Step 1. Given information

Step 2. Solving for a

Step 3. Solving of f(-a)

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If f(x)=sin xandf(a)= $\frac{3}{5}$ , findf(-a)