Let a=cosA +cosB ,b=4sinA sinBcosA+B then a-b= 2 2 2
Let a=cosA +cosB ,b=4sinA sinBcosA+B then a-b= 2 2 2

Last Activity: 3 Years ago

Last Activity: 3 Years ago

Last Activity: 3 Years ago

Last Activity: 3 Years ago

Last Activity: 3 Years ago