Q:- 6. Given that a = (-10), b = 7 and c = (-3), verify
a. a + (b + c) = (a + b) + c
b. a x (b + c) = (a x b) + (a x c)
Answers
Answered by
8
a) a + (b+c) = (a+b) + c
(-10) + (7+(-3)) = (-10+7) + (-3)
-10 + 4 = -3 + (-3)
-6 = -6
hence, proved
b) a x (b+c) = (a x b) + (a x c)
(-10) x (7 + (-3)) = (-10 x 7) + (-10 x (-3))
(-10) x (4) = (-70) + (30)
-40 = -40
hence, proved
Hope this helps!!
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Answered by
1
Answer:
Step-by-step explanation:
a) a + (b + c) = (a + b) + c
=> (-10) + (7 + (-3)) = ((-10) + 7) + (-3)
=> (-10) + (7 - 3) = (-10 + 7) + (-3)
=> (-10) + 4 = (-3) -3
=> (-6) = (-6)
b) a x (b + c) = (a x b) + (a x c)
=> (-10) x (7 + (-3)) = ((-10) x 7) + ((-10) x (-3))
=> (-10) x (7 - 3) = (-70) + (+30)
=> (-10) x 4 = (-70 + 30)
=> (-40) = (-40)
hence proved
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