[tex]\huge\red{Question}[/tex]
if angle A and angle B are acute angle such that COSA is equal to COSB then show that angle A is equal to angle B
[tex]\small\pink{Only \: ✍︎ \: moderators}[/tex]
if angle A and angle B are acute angle such that COSA is equal to COSB then show that angle A is equal to angle B
[tex]\small\pink{Only \: ✍︎ \: moderators}[/tex]
Answers & Comments
Verified answer
Answer:
cosA=cosB
AB
AC
=
AB
BC
AC=BC
In triangle,
angles opposite equal side are equal
∠B=∠A
Sorry Bro I am not Modirater Sorry For Giving This Answere
Answer: PLEASE MARK ME AS BRAINLIST
Step-by-step explanation: According to the question:-
Let cosA=
Hypotenuse
side adjacent AB AC
Similarly,
cosB=
Hypotenuse
side adjacent
=
AB
BC
Given that
cosA=cosB
AB
AC
=
AB
BC
AC=BC
In triangle,
angles opposite equal sides are equal
∠B=∠A