exam Maths Puzzle Numerical Ability

Simplify (mulitiply)

3 {{{ sqrt (25x-4) sqrt (25x)}}}

Would the answer be something like 1-{{{sqrt (25x)}}}

Read Solution (Total 0)

exam Other Question

(a) Express 8 Sin theta - 15 Cos theta, in the format: R.Sin(theta + beta)
(b) Using your answer to part (a), solve; 8 Sin theta - 15 Cos theta=8.5 for 0degrees<=theta<=360degrees andy is 6 years older than tom. the sum of thier ages is 26. how old are they?