B. Prove each item (Item 3 & 4) of the following by constructing a proof by element arguments 3. (RNS)' = R'US' (De Morgan's Law) 4. (M-K) U (L-K) = (M U L)-K

Q: Evaluate I = dr 9 + 16x6

A: To evaluate the integral.

Q: 1x-3=23

A: Given 1x - 3 = 23

Q: - 9x + 4 = 49

A: Solving for x

Q: -2x + 4 = 7

A:

Q: -3+9x=12

A:

Q: 3b-12 = 30

A:

Q: 2x + 1 = 98

A: Given 2x+1 = 98

Q: -8=-4+v

A: The given equation is,

Q: Evaluate. a + ab 5b for a = -2 and b = -4

A:

Q: Evaluate 8r-rs when r=6 and s=5

A: 8r-rs.........A given r=6 s=5  put r and s value in A

Q: Evaluate 7 + 5x, for x = 10

A: Evaluate 7 + 5x, for x = 10

Q: Ifm∠1=3x+15,m∠2=4x-5,andm∠3=5y,findthe valueofxandy.

A: Given : m∠1=3x+15, m∠2=4x-5, and m∠3=5y

Q: Evaluate 4a + b - 12 when a = - 1 and b = 2.5

A: See the solution below:

Q: 4x-3=8

A:

Q: 3x-2=13

A: Given equation is 3x-2=13

Q: x2=16

A: x2=16