Math, asked by ayushig1003, 11 months ago

class 10 th maths ques answer me fastt frnds
if \: \: angle \: a  \: and \: b \: are \: acute \: angle \\  \: such \: that \:  \cos(a) =  \cos(b) \: then \\  \: show \: that \: angle \: a = angle \:  b

Answers

Answered by Anonymous
2

hyy mate ✌️

hope it will help you ❣️❣️

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Answered by riyabakshi123
1

cos a = base / hypotenuse

so

cos a = ac/ab

similarly

cos b = base / hypotenuse

so

bc/ ab

given that cosa = cos b

ac/ab = bc/ ab

so

ac = bc

we know that opposite sides of triangle are equal so

angle b = angle a

hence proved

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