Math, asked by kjmickey03, 1 year ago

68. If A, B and C are the angles of a triangle and

then the triangle ABC is
(a) isosceles
(b) equilateral
(c) right angled isosceles
(d) none of these

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Answers

Answered by Anonymous

use the properties of determinants

after solving u will get

sinA=sinB

sinB=sinC

sinC=sinA

as AB=AC

for your convenience....

see the attachment

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kjmickey03: thanks

Anonymous: mention not dude...

kjmickey03: but i have a doubt if in a triangle all the sides are equal then it should be definately an equilateral triangle

Anonymous: see...here all the sides are not equal...one side is equal to other side

kjmickey03: ohhhh got it thank you very much for clearing my doubt

Anonymous: here AB=BC and not AB=BC=CA simultaneously...

Anonymous: k.

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