Question

can someone help...
1. (7)/(1-√3)

A. -(7-7√2)/(2
B. -(7+7√2)/(2)
C. (4+6√3)/(3)
D (2+7√3)/(2)

Answer 1

@Beautiful_lier96 do u know how to rationalize?

Answer 2

kinda..

Answer 3

@niksva i know the bottom number is -2

Answer 4

u r right
what do u get in numerator?

Answer 5

umm 7+√3..... so im guessing it would be letter B

Answer 6

check again
u will get { 7+ 7 sqrt(3) }

Answer 7

how ? n the answer isnt b ?

Answer 8

i think there is something wrong in the options
it cant be b

Answer 9

\[\dfrac{7}{1-\sqrt3} = \dfrac{7}{1-\sqrt3} \cdot \dfrac{1+\sqrt3}{1+\sqrt3} \]

Answer 10

the answer choice for d is (2+7√3)/2

Answer 11

it cannot be d

Answer 12

It is B, but instead of √2, it should be √3

Perhaps it's a typo?

Answer 13

I think, by mistake, someone has wrote sqrt(2) in options a and b in place of sqrt(3)

Answer 14

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Answer 15

according to me ,
answer is - (7+7√3)/2

Answer 16

Same here.

Answer 17

i just put it as be. can you help with another question or 2 ?

1. (5√32)-(7√8)
A. 4√2
B. 3√2
C. 6√3
D. 6√2

2. (2√15xy³)(3√30x³y²)
A. 4x²y³√5xy
B. 3x²√2y
C. 90x²y²√2y
D. x²y²√xy