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Find the approximate value of cos61o ...

Find the approximate value of `cos61o` using differentials, it being given that `sin60o=0. 86603` and `1o=0. 01745` radian

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RD SHARMA ENGLISH-DIFFERENTIALS, ERRORS AND APPROXIMATIONS-All Questions
  1. Using differentials, find the approximate value of (log)e 10.02 , i...

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  2. Using differentials, find the approximate value of (log)(10)10. 1 ,...

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  3. Find the approximate value of cos61o using differentials, it bei...

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  4. Find approximate value of 1/(sqrt(25. 1)) using differentials.

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  5. Using differentials, find approximate value of sin((22)/(14))

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  6. Approximate cos((11pi)/(36)) using differentials.

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  7. Approximate (80)^(1//4) using differentials

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  8. Use differentials and find approximate value of (29)^(1//3)

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  9. Using differentials, find the approximate value of (66)^(1//3)

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  10. Using differentials, find the approximate value of sqrt(26)

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  11. Using differentials, find the approximate value of sqrt(37)

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  12. Using differentials, find the approximate value of sqrt(0. 48)

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  13. Using differentials, find the approximate value of (82)^(1/4) upto ...

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  14. Use differentials to find the approximate value of (17/18)^(1/4)

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  15. Using differentials, find the approximate value of (33)^(1//5)

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  16. Using differentials, find the approximate value of sqrt(36. 6)

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  17. Using differentials, find the approximate value of 25^(1//3)

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  18. Using differentials, find the approximate value of sqrt(49. 5)

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  19. Using differentials, find the approximate value of (3. 968)^(3//2)

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  20. Using differentials, find the approximate value of (1. 999)^5

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