exam Maths Puzzle Numerical Ability

Verify that (sec θ/sin θ)(cot θ/csc θ)= csc θ is an identity.

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exam Other Question

hello, I need to rationalize the denominator to the following: square root of 3x divided by square root of x minus square root of 3. Thank you for your time! 1)A jogger starts a course at a steady rate of 8 kph.Five minutes later,a second jogger starts the same course at 10 kph.How long will it take the second jogger to catch the first?