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EXERCISE 4.2.1. Find the cube roots of the following:(i) 1728(ii) -2197(v) 4096(iii) - 13824(vi) 49132. Find the cube root of the following rational numbers:(vii) -428754913(iii) 133142875(V) 91125(viii) 926102197(ii)1728liv) 729343(v) 4096(vi)729(vii) -343(vii) 110592166375(iv) -250 x 2048(viii) -245 x 175-125219733753. Find the cube root of: (without actual multiplication)(D) 216 8 (11) 125 x 729 (1) 16 * 32(v) -243 24 (vi) 108 x 16 (vii) 200 X 404. Find the cube roots of the following by observing the units digit:(i) 314432 (ii) 132651(in) 3375(V) 79507(vi) 216(vii) 1574645. Find the valuc of the following:294976 3348(ii) 70.250047(110TS)(iv) 59319(vii) 389017(HOTSHOTS[HOT]V 36872 170366. Three numbers are in the ratio 2:3:5. If sum of their cubes is 34560: find the numbers. Thors |
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Answer» 1) 122) -13similarly find others |
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