Answer:
you are correct it is, 4a+100b
Step-by-step explanation:
1. f(x) = 1
2. f(x) = x
3. f(x) = 5 - x
4. f(x) = 3

<u>Step-by-step explanation:</u>
Here we have , sin x=7/25( given sin x = 725 which is not possible ) ,
. Let's find tan (x - pi/4):
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Now , 
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