1.

Find the product: `(5 - sqrt3) (sqrt3 -1) (5 + sqrt3) (sqrt3 +1)`

Answer» `(5 - sqrt3) (sqrt3 -1) (5 sqrt3) (sqrt3 +1)`
`= {(5 - sqrt3) (5 + sqrt3)} {(sqrt3-1) (sqrt3+1)}`
`= {(5)^(2) - (sqrt3)^(2)} {(sqrt3)^(2) - (1)^(2)} = (25 -3) (3-1)`
`= 22 xx 2 = 44`
Hence the required result = 44


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