Which of the following is not a Pythagorean triplet?
3, 4, 5
5, 12, 13
7, 24, 25
10, 12, 13
Verify each of the following :
(i) (57×1213)×718=57×(1213×718) (ii) −1324×(−125×3536)=(−1324×−125)×3536 (iii) (−95×−103)×21−4=−95×(−103×21−4)
Find each of the following products :
(i) 35×−78 (ii) −92×54 (iii) −611×−53
(iv) −23×67 (v) −125×10−3 (vi) 25−9×3−10
(vii) 5−18×−920 (viii) −1315×−2526 (ix) 16−21×145
(x) −76×24 (xi) 724×(−48) (xii) −135×(−10)
(i) 37×−59=−59×37
(ii) −87×139=139×−87
(iii) −125×7−36=7−36×−125
(iv) −8×−1312=−1312×(−8)
Verify the following :
(i) 37×(56+1213)=(37×56)+(37×1213) (ii) −154×(37+−125)=(−154×37)+(−154×−125) (iii) (−83+−1312)×56=(−83×56)+(−1312×56) (iv) −167×(−89+−76)=(−167×−89)+(−167×−76)
Re-arrange suitably and find the sum in each of the following :
(i)1112+−173+112+−252
(ii)−67+−56+−49+−157
(iii)35+73+95+−1315+−73
(iv) 413+−58+−813+913
(v)23+−45+13+25
(vi) 18+512+27+712+97+−516