If y = ex(sin x + cos x) prove that 
.
Formula: –
Given: –
Differentiating w.r.t x
Differentiating w.r.t x
Adding and subtracting 
on RHS
31
If y = ex(sin x + cos x) prove that .
Formula: –
Given: –
Differentiating w.r.t x
Differentiating w.r.t x
Adding and subtracting on RHS