How to remember the values correctly in exams
vanteru manasa , 11 Years ago
Grade 12
Trigonometry> multiple-and-submultiple-angles...
1 Answers
bharat bajaj
Last Activity: 10 Years ago
Just remember only the sine values of the angles.. You may calculate its corresponding cos values by the equation
(sin x)^2 + (cos x)^2 = 1
Also, to know that your value is correct roughly, check that sin x is increasing from 0 to 90.. and cos x is decreasing from 0 to 90.
THanks
Bharat Bajaj
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