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Values of the other trigonometrical ratios of the standard angles. Standard angles from the trigonometrical ratios table therefore we can easily find the

Since, we know the sin and cos value of the Respectively the positive square roots of 4/4, 3/4, 2/4, 1/4, 0/4 Similarly cosine of the above standard angels are now if you want to get introduced to trigonometric identities one of the best places to begin is with a right angle triangle and the moment you see this right angle triangle an equation a theorem pops into your mind doesnt it a square plus B squared equals C squared even if you try to forget this equation youll never be able to its that deepl. Positive square roots of 0/4,1/4, 2/4,3/4 and 4/4 TrigCheatSheet DefinitionoftheTrigFunctions Righttriangledefinition Forthisdefinitionweassumethat 0 < < 2 or0 < < 90. The standard angles 0°, 30°, 45°, 60° and 90° are respectively the

If θ be an acute angle, the values of sin θ and cos θ lies between 0 and 1 (both inclusive). (d) write the values of sin 0°, sin 30°, sin 45°, sin 60° and sin 90° in reverse order and get the values of cos 0°, cos 30°, cos 45°, cos 60° and cos 90° respectively. (c) these numbers given the values of sin 0°, sin 30°, sin 45°, sin 60° and sin 90° respectively. (a) divide the numbers 0, 1, 2, 3 and 4 by 4, Note: Values of sin θ and cos θ lies between 0 and 1 (both inclusive)