Question

if x/a cos0 + y/b sin0 = 1 and x/a sin0 - y/b cos 0 = 1, prove that
$x^2 \div a^2 + {y }^{2} \div {b}^{2} = 2$


​

Answer 1

Step-by-step explanation:

The marks (out of 100) obtained by a group of students in a science test are

85,76,90,85,39,48,56,95,81&75

(ii) Range of the marks obtained.