Question

if a=0.87and b=0.3 then a4-b4/a2+b4 is equal to

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Answer 1

1.9213793103 is the correct answer

Answer 2

Answer:

Step-by-step explanation:

(a4-b4)/a2+b2)=(a2-b2)(a2+b2)/a2+b2)

=

(a+b) (a-b)

=(0.87-0.13) (0.87+0.13)

=(0.74) (1.00)

=0.74