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The area of a DeltaABC is calculated by...

The area of a `DeltaABC` is calculated by the formula `Delta=(1)/(2)ab sinC`. If `deltac` is the error in measuring the angle C, then the approximate error in the area is

A

`(1)/(2)ab""sincdeltac`

B

`(1)/(2)ab cosc delta c`

C

`(1)/(2)ab tanc delta c`

D

`(1)/(2)ab cotc delta c`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ERRORS AND APPROXIMATIONS-PRACTICE EXERCISE
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  2. The percentage error in measuring the side of a cube is 0.5. Then the ...

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  3. If PV^(1//4)=C, then the volume is decreased by 1/2% then the percenta...

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  4. The area of a DeltaABC is calculated by the formula Delta=(1)/(2)ab s...

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  5. Let P be the pressure and V the volume of a gas such that PV = constan...

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  6. If S=(1//2)ab""sinC and alpha is the error in C then, relative error i...

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  7. An electric current 'C' is measured by tangent galvanometer. The relat...

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  8. If f(x)=x^(2)+x,x=10,deltax=0.1 abserve the following Statement-I de...

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  9. If f(x)=2x^(2)+3x-5,x=3,deltax=0.1 then deltaf=A (2) If f(x)=x^(2)+4...

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  10. Radius of a sphere is 2 cm and error in it is 1/10 cm then arrange the...

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  11. Observe the following statements The correct matching is

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  12. If side of a cube is 10 cm and error in it is 0.05 cm then match the f...

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  13. Assertion (A): If the length (l) of the simple pendulum is decreased b...

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  14. The approximate value of (1)/(root(3)(8.08)) is

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  15. The volume of a sphere is calculated by the formula V=(4)/(3)pir^(3). ...

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  16. Which of the following statements are true Statement-I : If y=x^(2)+2x...

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  17. The approximate value of (1.0002)^(3000) is

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  18. The voltage E of a thermocouple as a function of temperature is given ...

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  19. If DeltaABC the sides, b,c are given. If there is an error deltaA in m...

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  20. Assertion (A) : Approximate value of (1.0002)^(3000) is 1.6 Reason...

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