exam Maths Puzzle Numerical Ability

Find sec &#920; if tan &#920;=1/4 aand 180º<270º.

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exam Other Question

For the systems of linear equations in questions 1-3
- Determine how many solutions exist
- Use either elimination or substitution to find the solutions (if any)
- Graph the two
Simplify

c to 4th power d fifth power ad to -1 power a to 9th power c to 3rd power.