solve question 18o clock
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2√3 is the final answer . ... ..
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HEY your answer is hear
a =2+√3. (given)
1/a = 1/2+√3
Rationalise the denominator BECAUSE IN RATIONAL NO DENOMINATOR IS NOT IN ROOT
=1/2+√3 x 2-√3/2-√3
=1x2-√3/ 2+√3 x 2-√3
= 2-√3/ (2)^2 - (√3)^2. (a+b)(a-b) = a^2-b^2
=2-√3/4-3
2-√3/1
from the question a-1/a
2+√3 -(2-√3)
2+√3 -2+√3
2-2+√3√3
-2 and 2 cut each other
√3+√3
= 2√3 ( and)
HOPE IT WILL HELP YOU
a =2+√3. (given)
1/a = 1/2+√3
Rationalise the denominator BECAUSE IN RATIONAL NO DENOMINATOR IS NOT IN ROOT
=1/2+√3 x 2-√3/2-√3
=1x2-√3/ 2+√3 x 2-√3
= 2-√3/ (2)^2 - (√3)^2. (a+b)(a-b) = a^2-b^2
=2-√3/4-3
2-√3/1
from the question a-1/a
2+√3 -(2-√3)
2+√3 -2+√3
2-2+√3√3
-2 and 2 cut each other
√3+√3
= 2√3 ( and)
HOPE IT WILL HELP YOU
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