Σ(3-1²) Estimate the value of the sum: -1 -73 36 73 -36

Q: (3c)²(3c)³

A: To solve 3c23c3

Q: 355+926 using leftmost digit rounding, the sum is approximately

A: Rounding off to the nearest 100: To round a number to the nearest 100, look at the tens digit. If…

Q: Evaluate the expression.

A: Given number 64 We know that 82=64 So, we have 64=8×864=8

Q: have

A:

Q: 11 (7 +3n) = Σ

A: The given sum is ∑n=4117+3n We have to find the equivalent expression.

Q: (1+i)85 (1-i)83 Evaluate:

A:

Q: 31 Ovr Qv(31)2 O (3x)²

A: Laws of surds and indices are used.