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Exponents and Powers Ex-12.1, Question 7:, 25 x1, 3×10 ×125, (1 ± 0), (ii), 5-7 x6-5, Simplify. (i) 5³×10×1*, Answer:, 25 x1, 5 ×10×1* 5³×5×2×1*, (1), 5 xr, (a* xa" =a**"), 53 x 2×1*, 5 xr, %3D, 5-x2x1, 524-2),+4-8), (a" *a' = a**"), 2, 5* 625, 2, 3x10x125 3°×(2×5)°x5, 57 x(2×3)*, 5-7 x6-5, (ii), 3x2x5x5, 5- x2 x3, =3* - (-5) x 25 -(-s) x5-5+3- (-7), [(axh)" =a* xb"], (a" *a' =a**), (a° =1), S-3-(-7), = 3° x 2° x 5, %3D, = 55, 2., %3D