OCR MEI C1 — Question 3

Exam BoardOCR MEI
ModuleC1 (Core Mathematics 1)
TopicTrig Proofs

3 In each case, choose one of the statements $$\mathbf { P } \Rightarrow \mathbf { Q } \quad \mathbf { P } \Leftarrow \mathbf { Q } \quad \mathbf { P } \Leftrightarrow \mathbf { Q }$$ to describe the complete relationship between P and Q .
  1. For \(n\) an integer: P: \(n\) is an even number
    Q: \(n\) is a multiple of 4
  2. For triangle ABC : P: \(\quad \mathrm { B }\) is a right-angle
    Q: \(\quad \mathrm { AB } ^ { 2 } + \mathrm { BC } ^ { 2 } = \mathrm { AC } ^ { 2 }\)