Question

the angles of a quadrilateral are in AP if the product of first and fourth term and the product of second and third terms are in the ratio 27:28.findbAP
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Answer 1

Answer:

a1*a4:a2*a3 is 27:28

Step-by-step explanation:

a*(a+3d)/(a+d)(a+2d)=27/28

a^2+3ad/a^2+2ad+ad+2d^2=27/28

28(a^2+3ad)=27(a^2+2ad+ad+2d^2)

28a^2+84ad=27a^2+54ad+27ad+54d^2

28a^2-27a^2=54ad+27ad-84ad +54d^2