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(5)..(a).√45-3√20+4√5
√3×3×5-3√2×2×5+4√5
3√5-6√5+4√5
7√5-6√5=√5 ans
(b)..√24/8 +√54/9
√3+√6=√3(1+√2) ans
(6)..(a)2/3√3 ×3√3/3√3
6√3/27=2√3/9 ans
(f)4√3+5√2/√48-√18
4√3+5√2/(√2×2×2×2×3-√2×3×3)
4√3+5√2/(4√3-3√2) ×4√3+3√2/4√3+3√2
48+12√6+20√6+30/(48-18)
78+32√6/30
2(39+16√6)/30
39+16√6/15
is your answer
√3×3×5-3√2×2×5+4√5
3√5-6√5+4√5
7√5-6√5=√5 ans
(b)..√24/8 +√54/9
√3+√6=√3(1+√2) ans
(6)..(a)2/3√3 ×3√3/3√3
6√3/27=2√3/9 ans
(f)4√3+5√2/√48-√18
4√3+5√2/(√2×2×2×2×3-√2×3×3)
4√3+5√2/(4√3-3√2) ×4√3+3√2/4√3+3√2
48+12√6+20√6+30/(48-18)
78+32√6/30
2(39+16√6)/30
39+16√6/15
is your answer
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