Answer:
Step-by-step explanation:
Given equation: 
In the given equation, is a coefficient and y is the variable.
coefficient is a constant number or quantity multiplied to a variable in an algebric expression. Like in the above equation is a coefficient and y is the variable. We use term variable for y as its value may vary or change. If variable does not have any coefficient in any expression then in that case, we consider 1 as coefficient, for example: 
, here variable have 1 as coefficient.
Hence, the fractional coefficient is .
Answer:
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integral of e^x (sinx +cosx)= e^x sin x + c
The anwer of this question is c
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