Q. 15⋅(−4i+2)=Your answer should be a complex number in the form a+bi where a and b are real numbers.
Multiply real part by 15: Multiply the real part of the complex number by 15.The real part of the complex number is 2. Multiplying this by 15 gives us 30.Calculation: 15×2=30
Multiply imaginary part by 15: Multiply the imaginary part of the complex number by 15.The imaginary part of the complex number is \(-4i"). Multiplying this by 15 gives us \(-60i").Calculation: \(15 \times (−4i) = −60i")
Combine results to form final complex number: Combine the results from Step 1 and Step 2 to form the final complex number.The real part is 30 and the imaginary part is −60i. Therefore, the final complex number is 30−60i.Calculation: 30+(−60i)=30−60i
More problems from Write equations of cosine functions using properties