Question

समातर श्रढ़ा 10, 7, 4, ... का कौन-सा पद - 41 है ?
Which term of the A.P. 10,7, 4, ... is-41?
fi Doon -
11 11
MATLINE​

Answer 1

an= -41

a=10

D=a2-a1

=7-10

= -3

an=a+(n-1)D

-41=10+(n-1)(-3)

-41=10-3n+3

-41=13-3n

-3n= -41-13

-3n= -54

n= -54/-3

n=18

18th term of the AP is -41

hope you understand

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