Question

Please tell me full explanation of this if don't know plz don't type.
and solve by without using l hospital law​

Answer 1

Answer:

7/2 is the answer for the given problem

Answer 2

Answer:

7/2

Step-by-step explanation:

add and subtract 1 to

numerator:

2x²-(sqrtx-1) -2 = 2(x²-1) - (sqrt x -1)

we can write the given limit as

2(x²-1) sqrtx -1

lim ______ - ______

x->1 x-1 x-1

lim f(x) - g(x) = lim f(x) - lim g(x)

lim x^n -a^n /(x-a) = n.a^n-1

x->a

lim 2(x²-1) = 2× lim x²-1² = 2×2× 1^(2-1) =4 --A

x->1 x-1 x->1 x-1

similarly

lim x½-1½ = 1/2×1^(½-1) = 1/2 ---B

x->1 x-1

A-B = 4-1/2= 7/2