Question

एका क्रमिकेचे n वे पद tn=2n-5 असेल तर तिची पहिली पाच पदे काढा​

Answer 1

Given : एका क्रमिकेचे n वे पद tₙ=2n-5

nth term of a sequence is tₙ=2n-5

To Find : पहिली पाच पदे काढा​

Find first five terms.

Solution:

tₙ=2n-5

substitute n = 1 to find 1st term.

t₁ = 2(1) - 5  =  - 3

substitute n = 2 to find 2nd term.

t₁ = 2(2) - 5  =  - 1

substitute n = 3 to find 3rd term.

t₁ = 2(3) - 5  =   1

substitute n = 4to find 4th term.

t₁ = 2(4) - 5  =    3

substitute n = 5 to find 5th term.

t₁ = 2(5) - 5  = 5

पहिली पाच पदे

first 5 terms are :

-3 , - 1 , 1 , 3 , 5

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