Question

please tell question 1,2 ,4 and 5 answers are given below

question 1 = - 3 upon 40
question 2 =root 5
question 4= root 2 + root 6 upon 2
question 5 =root 12​

Answer 1

Answer:

1•) -2/5&1/4.

1/2(-2/5+1/4)

1/2(-8+5/20)

1/2(-3/20)

-3/40.