Recommended Questions
- cos alpha+ cos(120^@ +alpha)+ cos(120^@ -alpha)=0
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- cos^(3)alpha+cos^(3)(120+alpha)+cos(120-alpha)=3(sqrt(3))/(4), then th...
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- cos alpha+cos(120^(@)+alpha)+cos(120^(@)-alpha)=0
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- cos^(2)alpha+cos^(2)(alpha+120^(@))+cos^(2)(alpha-120^(@))=(3)/(2)
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- Assertion (A):cos^(2)theta+cos^(2)(60^(@)-theta)+cos^(2)(60^(@)+theta)...
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- cos^(2) alpha+ cos^(2) (alpha+ 120^(@)) + cos^(2) (alpha- 120^(@)...
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- cos ^(2) alpha + cos ^(2) (alpha + 120^(@)) + cos ^(2) (alpha - 120^(@...
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- I : If x cos theta = y cos (120^@ + theta ) = z cos ( theta + 240^(@)...
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- Show that,cos^(2)alpha + cos^(2) (120^(@) - alpha) + cos^(2) (120^(@) ...
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