Question

a+1/a = 1 हो तो a par
power3+1 =?​

Answer 1

Answer:

==> a² - 1/a² = ± 5√29 ———————————(6)

Step-by-step explanation:

Given,

a - 1/a = 5——————————————-(1)

Squaring both sides, we get

a² + 1/a² - 2(a)(1/a) = 25,

==> a² + 1/a² = 25+2=27,—————————(2)

Adding 2 to both sides of (2)we get

a² + 1/a² + 2 = 27+2= 29 —————————-(3)

==> [ a + (1/a)]² = 29 ———————————(4)

Taking square root of (4) we get

( a + 1/a ) = ± √29————————————-(5)

Multiplying (1) and (5) we get,

( a -1/a)(a +1/a)= ± 5√29

==> a² - 1/a² = ± 5√29 ———————————(6)