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Exmple 3, Compare 7 and 2"., Selution, 7-7x7-49, it, 2-2x2x2x2x2x2x2-128, wa, Hence,, • in, ten, EXERCISE 5.2, 1 Using the laws of exponents. Simplify in the exponential form, (a) 3x3, (b)6x6 6, (c) mxmxm, Tick, (d), (e), (), 1 2, (h) nxnxn, 1) (-7) x (-7)° × (-7)*, 2. e, 2. Expand:, (a) (3a), (e) (-6a)", ROT (4 x 3)*, (c) (2 x b)", by", (d) (7 x 3), 3. C, (0 (axb), (h) (-8 x x), 3. Which one is greater?, 4. I, a (3) or (3) x 4, (b) (4')°or (4') 5, 4. Write the following in exponential form assuming the denominators are not equal to zero, 4, (a), (-2), (c), (d) (-5), (-5)", 5. 2, 10, (b), 10, (-2)°, (e), () (0.5) + (0.5), (g) (6.8) + (6.8)*, (h), 5. Express the following with a single power:, (a) (3)x (3*), יו'מו > י("2) a-, (g) (2)x (2 ) × (2 )*, ץ(יש> '(יqo, (e) (9)' x (9')*, (h) (3)x (3 )* x (3), (c) (5'y (5 )*, () (10') (10), 7. 1, 8. L, 6. Simplity and answer in the exponential, (a) (2 ×2)', 4xa b, (b), 4 x a'b, (c), (d) 2'×2² ×5*, 3 x3, (e), 3 x3, () (6 x6) + 6, (g), (h), THINGS TO REMEMBER, 2., 3., is called the exponential notation where 'a' is base and 'n is exponent (power)., For any non-zero integers a and b and whole numbers m and n., (a)a" ×, a" =a" = a",m>n, (b) a" - a", (c) (a")" = a, (d)a" x b"= (ab)" (e) a" - b" =, () (- 1) =1 and (- 1), Mathematics-7, 64, ОPPO A15s