sqrt5 sqrt(-125)=...

`sqrt5 sqrt(-125)=`

A

25

B

`-25`

C

25i

D

`-25i`

Text Solution

Verified by Experts

The correct Answer is:

B

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(sqrt7+sqrt5)(sqrt7-sqrt5)=...............

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|(sqrt(13)+sqrt(3),2sqrt(5),sqrt(5)),(sqrt(15)+sqrt(26),5,sqrt(10)),(3+sqrt(65),sqrt(15),5)|=

A

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B

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C

`25sqrt(2)-15sqrt(3)`

D

0

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AAKASH SERIES-COMPLEX NUMBERS-EXERCISE - I

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