Find the sum: -7+-9+4+16.
Calculate the sum of the given expression:
Given expression: -7+-9+4+16.
=-7-9+4+16=-7-9+4+16=-7+9+4+16=-16+4+16=-16+16+4=0+4=4
Hence, the sum of the given expression is 4.
Tick (\checkmark) the correct answer in each of the following: (x+4)(x+4)=?
(a) (x2+16) (b) (x2+4x+16) (c) (x2+8x+16) (d) (x2+16x)
Find the sum of n terms of the series (4−1n)+(4−2n)+(4−3n)+...