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use formal definition for formal proof (limits)

Use an appropriate formal definition to give a formal proof of each of the following.

(a) lim (x^{3}− 5x+6) = 2

x→1

(b) lim __9-4x__^{2 }_{= 6}

x→ −1.5 3+2x

(c) lim __ 1 __ _{= ∞}

x→ −3 (x+3)^{4}

(d) lim lnx = - ∞

x→0^{+}

i've uploaded an attachment with the question in a better, more understandable format

Re: use formal definition for formal proof (limits)

Re: use formal definition for formal proof (limits)

Quote:

Originally Posted by

**asifrahman1988** Use an appropriate formal definition to give a formal proof of each of the following.

(a) lim (x^{3}− 5x+6) = 2

x→1

(b) lim __9-4x__^{2 }_{= 6}

x→ −1.5 3+2x

(c) lim __ 1 __ _{= ∞}

x→ −3 (x+3)^{4}

(d) lim lnx = - ∞

x→0^{+}

i've uploaded an attachment with the question in a better, more understandable format

Could you show us what you've tried for each question please?