![Trigonometry – My Grandmother Also Can Do This!](https://www.exampaper.com.sg/blog/wp-content/themes/exampaper/timthumb.php?src=https%3A%2F%2Fwww.exampaper.com.sg%2Fblog%2Fwp-content%2Fuploads%2F2007%2F04%2Fe-maths-trigo-1.jpg&w=100&h=90&zc=1&q=100)
Today’s question looks sooo simple. Just punch those keys on your state-of-the-art Casio scientific calculator and you will get it right … except that this is a Paper 1 question and your favourite Casio calculator should not be there! So how now? Go ask your Grandma (Ah SOH) with the big foot (TOA CAH) for […]