if a=3+√5/2,then find the value of a²-1/a²
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We find 1/a by rationalising the denominator.
Then use the formula of :
X²- y²= (X+y)(x-y)
The value of a²- 1/a²= 3√5
_____________________________Hope this will help you...
Then use the formula of :
X²- y²= (X+y)(x-y)
The value of a²- 1/a²= 3√5
_____________________________Hope this will help you...
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