Question

if t9=0 then find value of t19​

Answer 1

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Answer:

Answer:Given: d=3

Answer:Given: d=3We know:

Answer:Given: d=3We know:a

Answer:Given: d=3We know:a n

Answer:Given: d=3We know:a n

Answer:Given: d=3We know:a n =a+(n−1)d

Answer:Given: d=3We know:a n =a+(n−1)d∴a

Answer:Given: d=3We know:a n =a+(n−1)d∴a 20

Answer:Given: d=3We know:a n =a+(n−1)d∴a 20

Answer:Given: d=3We know:a n =a+(n−1)d∴a 20 −a

Answer:Given: d=3We know:a n =a+(n−1)d∴a 20 −a 15

Answer:Given: d=3We know:a n =a+(n−1)d∴a 20 −a 15

Answer:Given: d=3We know:a n =a+(n−1)d∴a 20 −a 15 =[a+19d]−[a+14d]

Answer:Given: d=3We know:a n =a+(n−1)d∴a 20 −a 15 =[a+19d]−[a+14d] =5d

Answer:Given: d=3We know:a n =a+(n−1)d∴a 20 −a 15 =[a+19d]−[a+14d] =5d =5×3

Answer:Given: d=3We know:a n =a+(n−1)d∴a 20 −a 15 =[a+19d]−[a+14d] =5d =5×3 =15

Answer:Given: d=3We know:a n =a+(n−1)d∴a 20 −a 15 =[a+19d]−[a+14d] =5d =5×3 =15Hence, the answer is 15.