Question

Find the genral rule for finding
a number 3, 7, 11, 15,19...... also
find the number in 10th position and 100th position​

Answer 1

Answer:

Please refer to the picture.

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Answer 2

Answer:

it's series in A.P,

so first of all apply Tn formula

tn=a+(n-1)d

for 10th term n=10 , a=3 and common difference = 4

so t10=3+(10-1)×4

=3+9×4

=39