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Find the first term and the number of te...

Find the first term and the number of terms in an AP is
the mth, nth, and last terms are n, m, and o, respectively.

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The correct Answer is:
`a=n+m-1,d=-1,n=m+n`
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CENGAGE-PROGRESSIONS -TEST YOURSELF (Level 2)
  1. Find the first term and the number of terms in an AP is the 4th,16th...

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  2. Find the first term and the number of terms in an AP is the 7th, 15t...

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  3. Find the first term and the number of terms in an AP is the mth, nth...

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  4. Sum the following series : 1+4+7+ . . . to 40 terms

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  5. Sum the following series : -4+4+12+ . . . to 20 terms

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  6. Sum the following series : (a-b)^(2),(a^(2)+b^(2)),(a+b)^(2)+ . . . ...

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  7. How many terms of the series 9+12+15+ . . . must be taken to make the ...

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  8. Find three numbers in AP whose sum is 15 and the sum of the squares of...

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  9. Examine whether the following form a geometric progression. If so, fin...

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  10. Examine whether the following form a geometric progression. If so, fin...

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  11. Find the 8th term of the series -1//3,1//2,-3//4, . . .

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  12. Find the 5th and 8th terms of the series 3,6,12, . . .

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  13. Find the 10th and 16th terms of the series 256,128, 64, . . .

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  14. Which one of the following is in HP ? 1,1/4,1/7,1/10

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  15. Which one of the following is in HP ? 1/3,1/6,1/12,1/24

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  16. Which one of the following is in HP ? 2,1/2,1/7,1/5

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  17. Write the nth term and the term indicated against each case : 1/a,(1...

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  18. Write the nth term and the term indicated against each case : 4/7,12...

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  19. Write the nth term and the term indicated against each case : 2,1 3/...

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  20. Find the nth term and the term indicated against each sequences : s...

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