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Grade: 11
        
if sinx1+sinx2+sinx3=3, then write the value of cosx1+cosx2+cosx3
2 years ago

Answers : (1)

Ravneet
104 Points
							
sinx1 + sinx2 + sinx3 = 3
this can only be possible when sinx1 = sin2 = sinx3 = 1
becouse maximum value sinx can take is 1  
so we can say that x1 = x2 = x3 = 90
therefore, cosx1 + cosx2 + cosx3 = 0 
2 years ago
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