CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

In a ABC,ab=2+3 and C=60. Then the ordered pair (A,B) is equal to: 


A
(45,75)  
loader
B
(75,45)    
loader
C
(105,15)    
loader
D
(15,105)   
loader

Solution

The correct option is B (105,15)    
ab=2+31
By componendo and dividendo,
a+bab=3+31+3=3
Now, By Napier's law,
tanAB2=aba+b cotC2
tanAB2=1
AB2=45 
AB=90
Also, A+B=120
A=105, B=15 

Co-Curriculars

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More



footer-image