Q7. Solve the differential equation f"(t) - 4f(t) = sin2t where f(0) = 1​

Ithink the answer is b i hope it my friend message me if i’m wrong and i’ll change my answer and fix it for you

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.