1.

If in an A.P a3=12 and a6=33 then find s10​

Answer»

Answer:

given,

a3 =12

then, a+2d = 12 ------(eq1)

and a +5d = 33 -----(eq2)

solve 1 and 2

then you will get d value

and substitute it in either eqns 1 and 2

you will get the value of a and d

now S10 = 10/2 ×2a + (n -1) d

solve it then you will get the answer

Step-by-step explanation:

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