plz solve 2. (1)
Plz provide steps or send solved ans
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√3 - 1
⇒ -------------------- = a + b√3
√3 + 1
By multiplying numerator and denominator of L.H.S by ( √3 - 1 ) .
( √3 + 1 ) ( √3 + 1 )
⇒ --------------------------------- = a + b√3
( √3 + 1 ) ( √3 - 1 )
(√3)² + 1 + 2 × √3
⇒ -------------------------- = a + b√3
(√3)² - 1²
3 + 1 + 2√3
⇒ -------------------- = a + b√3
3 - 1
4 + 2√3
⇒ ------------------ = a + b√3
2
2 ( 2 + √3 )
⇒ ------------------ a + b√3
2
⇒ 2 + √3 = a + b√3
By comparing coefficients,
a = 2 and b = 1
Hope it helps !
√3 - 1
⇒ -------------------- = a + b√3
√3 + 1
By multiplying numerator and denominator of L.H.S by ( √3 - 1 ) .
( √3 + 1 ) ( √3 + 1 )
⇒ --------------------------------- = a + b√3
( √3 + 1 ) ( √3 - 1 )
(√3)² + 1 + 2 × √3
⇒ -------------------------- = a + b√3
(√3)² - 1²
3 + 1 + 2√3
⇒ -------------------- = a + b√3
3 - 1
4 + 2√3
⇒ ------------------ = a + b√3
2
2 ( 2 + √3 )
⇒ ------------------ a + b√3
2
⇒ 2 + √3 = a + b√3
By comparing coefficients,
a = 2 and b = 1
Hope it helps !
Anonymous:
Thanks Ashish
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