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If x sin3|+ y cos3|=sin|cos| and xsin|=ycos|, prove x2+y2=1.

Asked by Nishit 04/12/2017 Last Modified 08/12/2017

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Related Questions

Two numbers are in the ratio 5:6. If 8 is subtracted from each of the numbers, the ratio becomes 4 : 5. Find the numbers?

Let numbers are 5x and 6x (5x-8)/ (6x-8) = (4/5) => 5(5x-8)= 4(6x-8) => 25x-40 = 24x-32 => 25x-24x= 40-32 => x= 8 Two numbers are 5x 8= 40 and 6x8 = 48

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The sum of two children is ‘a’. The age of the father is twice the ‘a’. After twenty years, his age will be equal to the addition of the ages of his children. Find the age of father.

age of father is 40.(2a+20= a + (2*20) where father age is 2a.

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If the radius of the base of a cone is doubled keeping the height same. What is the ratio of the volume of the larger cone to the smaller cone?

When we take height=h and radios of base=r then volume of cone=?r^2*h/3 if radios of the base is doubled then R=2r and height=h so, volume is =?(2r)^2*h/3 therefore, ratio of the volume of latter cone...

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Find three numbers in A.P. whose sum is 21 and their product is 231.

Let, three numbers are (a-d), a, (a+d) So, (a-d)+a+(a+d)=21 => a=7 Again, (7-d)×7×(7+d)=231 => (7-d)×(7+d)=231÷7 => 7^2 - d^2 = 33=> d^2 = 49 - 33=> d^2 = 16=> d = 4 So, the numbers are 7-4= 3, 7 and 7+4=11

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Is it possible to construct a triangle by taking two of its angle: 70, 115?

NOSum of all the angles of a triangle is 180.As 70+115 is exceeding 180 degrees, it is not possible to construct a triangle.

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