3sinx+4cosx=5 answer the question and my friend to Z
3sinx+4cosx=5 answer the question and my friend to Z
Ashish Rana , 8 Years ago
Grade 12th pass
Trigonometry> 3sinx+4cosx=5 answer the question...
1 Answers
Nishant Vora
Last Activity: 8 Years ago
3/5sinx+4/5cosx=1
let cosA = 3/5 hence sinA=4/5
so now
cosAsinx+sinAcosx=1
sin(A+x)= sin(pi/2)
A + x = npi + (-1)^n pi/2
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