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Popular >

simplify 2i*(-i)

Solution

simplify

2 i \cdot (- i)

Solution

2

Solution steps

2 i (- i)

Apply rule:

a (- b) = - ab

2 i (- i) = - 2 ii

= - 2 ii

Apply exponent rule:

aa = a^{2}

ii = i^{2}

= - 2 i^{2}

Apply imaginary number rule:

i^{2} = - 1

= - 2 (- 1)

Multiply the numbers:

- 2 (- 1) = 2

= 2

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Frequently Asked Questions (FAQ)

What is 2i*(-i) ?
The solution to 2i*(-i) is 2