ABC is an isosceles triangle , right angled at C. From C draw CD so that angle BCD = 30 ° and angle ACD 120 ° , and from B draw BD perpendicular to CD at D. If CA = CB = a show that AD = a/2(7+2*3^(1/2))^1/2.

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)  

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step-by-step explanation:

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d.) yes, because the volume of the cone is greater than the volume of the sphere

step-by-step explanation: