Find the 8th term of the expansion of (1/2x-y)^10 a 5x^3y^7 b 70x5y5 c -14x3y7 d -15x3y7

d.

Step-by-step explanation:

By the binomial theorem,

Where,

Thus,

For the 8th term, r = 7,

Thus, the 8th term would be,

Hence, option 'D' is correct.

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5