Select the postulate that is illustrated for the real numbers.
2 answers:
Answer:
The commutative Multiplication Postulate
Step-by-step explanation:
The commutative property of multiplication states:
Let x and y be two numbers. Then, according to this property of multiplication,
That is x multiplied by y is equal to y multiplied by x.
Now, we were given:
This clearly means that 12 multiplied 6 is equal to 6 multiplied 12 times.
Hence, the real numbers out of all the given postulates and properties, they illustrates the commutative property of multiplication.
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Answer:
+
*LN(|
|) +C
Step-by-step explanation:
we will have to do a trig sub for this
use x=a*tanθ for sqrt(x^2 +a^2) where a=2
x=2tanθ, dx= 2 sec^2 (θ) dθ
this turns into integral(sqrt( [2tanθ]^2 +4) * 2sec^2 (θ) )dθ
the sqrt( [2tanθ]^2 +4) will condense into 2sec^2 (θ) after converting tan^2(θ) into sec^2(θ) -1
then it simplifies into integral(4*sec^3 (θ)) dθ
you will need to do integration by parts to work out the integral of sec^3(θ) but it will turn into (1/2)sec(θ)tan(θ) + (1/2) LN(|sec(θ)+tan(θ)|) +C
then you will need to rework your functions of θ back into functions of x
tanθ will resolve back into (see substitutions) while secθ will resolve into
sec(θ)= is from its ratio identity of hyp/adj where the hyp. is
and adj is 2 (see tan(θ) ratio)
after resolving back into functions of x, substitute ratios for trig functions:
= +
*LN(|
|) +C