Question

if for an A.P d =10 what is t6 - t40​

Answer 1

Answer:

-340

Step-by-step explanation:

t= a+(n-1)d

t6= a+5d

= a+5×10 (because d=10)

therfore, t6= a+50

t40= a+39d

= a+39×10 (because d is 10)

therfore, t40= a+390

so by subtracting you get, -340.

hope it helps you;)