3 minus root 3 by 7 + 4 root 3 is equal to a + b root 3
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As the denominator in this question is (7+4 root 3), we can rationalize it by multiplying it by (7- 4 root 3). We will also have to multiply the numerator by this same number.
(4+3√3)(7-4√3)/ (7+4√3)(7-4√3)
28-16√ +21√3-36/ 49-48 (opening the bracket)
-8+5√3/1
5√3-8(ans.)
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