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प्रश्न
Identify the following expression is polynomial. If not give reason:
`sqrt(5)x^2 + sqrt(3)x + sqrt(2)`
उत्तर
`sqrt(5)x^2 + sqrt(3)x + sqrt(2)` is a polynomial.
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Case Study -1
The figure given alongside shows the path of a diver, when she takes a jump from the diving board. Clearly it is a parabola.
Annie was standing on a diving board, 48 feet above the water level. She took a dive into the pool. Her height (in feet) above the water level at any time‘t’ in seconds is given by the polynomial h(t) such that h(t) = -16t2 + 8t + k.
At what time will she touch the water in the pool?
