find the 21st term to the A.P. whose first two terms are -3 and 4

1.	find the 21st term to the A.P. whose first two terms are -3 and 4
Answer» first term =-3so.a=3difference=second term- first termso,d=4-(-3)=7n=21=a+(n-1)d=3+(21-1)7=3+(20)7=3+140=143so the answer of this question is 143 this question answer is 143 a= -3 answersdifference= 4-(-3)=721th term = a+(n-1)d = -3+(21-1)×7 = -3+20×7 = -3+140 = 137 is the

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first term =-3so.a=3difference=second term- first termso,d=4-(-3)=7n=21=a+(n-1)d=3+(21-1)7=3+(20)7=3+140=143so the answer of this question is 143

this question answer is 143

a= -3 answersdifference= 4-(-3)=721th term = a+(n-1)d = -3+(21-1)×7 = -3+20×7 = -3+140 = 137 is the

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