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Hi there! It’s not a question but a trick to remind all those trigonometric ratios – helpful for all sin0= ½ *0 sin 30= ½ * √1 sin 45= ½ * √2 which is = √2/2 = 1/√2 sin60= ½ * √3 √3/2 sin90 = ½ * √4 =1 Hope this helps

Hi there!
It’s not a question but a trick to remind all those trigonometric ratios – helpful for all
sin0= ½ *0
sin 30= ½ *  √1
sin 45= ½ * √2      which is = √2/2 = 1/√2 
sin60= ½ * √3                     √3/2
sin90 = ½ * √4                  =1
Hope this helps

Grade:11

1 Answers

Ritz
22 Points
6 years ago
I have more east wayIt is so simple..take the trigonometry ratio tableAnd memories it. It will take 3 min.Just learn 1st column Then learn it opposite for cos columnThen learn tan columnThen learn opposite for cotThen for cosec do sin upside downSimilarly for sec with cos

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