Evaluate the definite integral:
4~1 5(sqrtx)dx

Question

anonymous · Answer

i like how i just asked the question and you already got a medal for saying f5 haha

amistre64 · Answer

:)

amistre64 · Answer

that notation would equate to an interval of [1,4] right?

amistre64 · Answer

5 x^(1/2+2/2)     2.5.sqrt(x^3)
------------- = ------------  correct?
 1/2 + 2/2                   3

anonymous · Answer

$$\int\limits_{1}^{4}$$

amistre64 · Answer

2.5.sqrt(x^3) 
------------  ; x = 4 = 10.4.2/3 = 80/3
        3

amistre64 · Answer

10.xsqrt(x)
---------- ; x=1 = 10/3
        3

80-10
-----  = 70/3  if i dint mess up lol
    3

anonymous · Answer

lol you probably didn't, it was one of the answer choices =)

anonymous · Answer

what is f' of sin30degrees?, if that question makes sense

amistre64 · Answer

f(x) = sin(30) you say?  and find the derivative?

amistre64 · Answer

sin(30) is a constant, so the derivative of a constant is 0

amistre64 · Answer

by definition, constant remain unchanging ;)  therefore their rate of change with respect to anything is 0

anonymous · Answer

Use differentials to estimate the value indicated. sin 27degrees
i was trying to work it out and got 1/2 = f'(sin30degrees)*3degrees

anonymous · Answer

1/2+ ***