Pam has a complex number with a real part of -2 and an imaginary part of -7. what is the conjugate of pams number? (explain how you got it)
@thomaster @Luigi0210 @preetha @mathmale
Help?
@hartnn
@Compassionate
@agent0smith @mathslover
please help me ASAP i really need help @hartnn @Luigi0210 @thomaster @preetha @mathmale @RadEn @mathslover @Compassionate @agent0smith @Ashleyisakitty
Conjugate of a + bi is a - bi. Eg. 2 - 4i would have conjugate 2 + 4i real part of -2 and an imaginary part of -7. your number is -2 - 7i
i dont understand can you try to futher explain so i can understand
All you do is change the sign (the + or -) on the imaginary part (with the i).
so the answer is simply -2-7i
can you help me with one more problem
show all the work to simplify. leave your answer in simple radical form: 1.7^ sqrt of x^2 2.(^3 sqrt x^4)^8
@agent0smith
@ParthKohli can you help me?
please help walter i need help with the 2nd question
It's really hard to understand the formatting of the second question...
sorry ill try to retype it
\[1.\sqrt[7]{x}^2\] \[2.(\sqrt[3]{x}^4)^8\]
is that good enough @ParthKohli
Ah.
Do you know that\[\large \sqrt[a]{x^b} = x^{b/a}\]
nope
so would number 1 be x^7/2
OK, now you do. Number one would be\[x^{2/7}\]
is that the final answer?
I believe, yes.
so number 2.
would it be (x^4/3)^8
@ParthKohli ?
Yes!
whats next?
would i evenly distribute the 8
yes, in other words\[(a^m)^n= a^{m \times n}\]
so x^32/24
is that the final answer or would i simplify? @ParthKohli
@ParthKohli
That's not right.
You only multiply to the numerator.
so it would be 768? @parthKohli
Hmm! I must leave now... sorry!
whats the answer
b4 you leave
@ParthKohli please
"so the answer is simply -2-7i" the conjugate of -2-7i is not -2-7i Re-read everything I wrote above.
oh im sorry its 2+7i my teacher said something about it im sorry for not putting your answer as a best response and i fanned you thnks
can you actually help me with what my teacher said about my answers@agent0smith
I don't know what your teacher said...
it's not 2+7i either.
Read this carefully: Conjugate of a + bi is a - bi. Eg. 2 - 4i would have conjugate: 2 + 4i your number is -2 - 7i Find its conjugate.
Here's another example: -5 + 7i would have conjugate: -5 - 7i
im sorry my compuyer crashed
wouldnt it be -2+7i then?
Yes
really awesome do you think ytou could help me with some other problems
#1A) You are correct that you would move the index to the exponent. However, reverse the fraction. The 2 goes on top, and 7 on the bottom: x^(2/7) #1B) Think of it as: x^(4/3)^(8/1) Then you multiply: 4/3 * 8/1 What do you get for your fraction exponent now?? @agent0smith
Post a new question, this is far too long and is unrelated to the original question
no its just 2 please help i dont want to have to make another post please just help me now and there half don u dont understand certain things in the problems
No, i don't want to look for the original problems in this mess. You'd be better off doing them from the start anyway, than trying to figure out where you went wrong.
but the first one is just \[x^{2/7}\]
what would i do next divide 7 by 2? @agent0smith
You already have the answer
ok so now 2 wouldnt x^(4/3)^(8/1) i multiple the exponents so it would be x^32/3
@agent0smith
@abb0t
yes
i was correct?
yes
well thnks @agent0smith your help was greatly appreciated i fanned you and will prob get around writing a testimonial
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