If the elevation of the sun changed from 30 degree to 60 degree find the difference between the length of shadow of a pole 15 m high made at this positions
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(i)
The value of x obtained by equating the given polynomial to 0 is the required value of x.
∴
Comparing the above equation with general quadratic equation:
a = 1, b = −5 and c = 6
(ii)
The value of x obtained by equating the given polynomial to 0 is the required value of x.
∴
Comparing the above equation with general quadratic equation:
a = 1, b = −2 and c = −1
(iii)
The value of x obtained by equating the given polynomial to 0 is the required value of x.
∴
Comparing the above equation with general quadratic equation:
a = 1, b = 5 and c = 6
(iv)
The value of x obtained by equating the given polynomial to 0 is the required value of x.
∴
Comparing the above equation with general quadratic equation:
a = 2, b = −7 and c = −15
(v)
The value of x obtained by equating the given polynomial to 0 is the required value of x.
∴
Comparing the above equation with general quadratic equation:
a = 1, b = 1 and c = −6
(vi)
The value of x obtained by equating the given polynomial to 0 is the required value of x.
∴
Comparing the above equation with general quadratic equation:
a = 9, b = 12 and c = 4
(vii)
The value of x obtained by equating the given polynomial to 0 is the required value of x.
∴
Comparing the above equation with general quadratic equation:
a = 1, b = −1 and c = −6
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