Question

5. Verify a X (bXc) = (aXb) X c by taking a= - 4/7 , b= 14/15 and c= - 3/4 .

Answer 1

Answer:

put values of a b a nd c in lhs you get

-4/7(14/15×-3/4)

-4/7((-42/60))

-4/7(-7/10)

4/10

2/5

now put values in rhs

(-4/7×14/15)×(-3/4)

(-8/15)×(-3/4)

24/60

4/10

2/5

LHS=RHS. HENCE PROOVED

PLZZZ BRAINLIEST MY ANSWER☺☺☺☺

Answer 2

LHS = -4/7 × [14/15 × (-3/4)]

= -4/7 × [14 × (-3)/15 × 4]

= -4/7 × -42/60

= 168/420 = 84/210

= 2/5

RHS =(-4/7 × 14/15) × -3/4

= (-4 × 14 / 7 × 15) × -3/4

= -56/105 × -3/4

= -56 × (-3) / 105 × 4

= 168/420 = 84/210

= 2/5

LHS = RHS