rationalise the denominator of (5+√3)/(7-√3)
Answers
Answered by
0
Answer:
47 + 27 ^3
Step-by-step explanation:
(a + b) (a - b) = a2 × b2
5 + 3^/ 7 - 4 3^
rationalise the denominator
= 5 + 3^ / 7 - 4 3 ^ × 7 + 4 3^ / 7 + 4 3^
= 5 (7 + 4 3^ ) + 3^ ( 7 + 4 3^ )
__________________________
(7)2 - (4 3 ^)2
= 35 + 20 3^ + 7 3^ + 12
= 47 + 27 3^
hope it help
Answered by
0
Answer:
= (5+√3) x (7+√3)
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( 7-√3) x (7 + √3)
= 35 +5√3 +7√3 + 3
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49 - 3
= 38+12√3
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46
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