I just started with Trigonometry and I am finding it difficult to memorize the Trigonometry Table. Due to this I am unable to solve sums without referring the table. Is any trick/way to memorize the Trigonometry Table. Thanks in advance
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That question is off-topic. – Another User Mar 06 '23 at 14:10
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2Does this answer your question? Easy way of memorizing values of sine, cosine, and tangent – Sathvik Mar 06 '23 at 14:18
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Notice that $\sin 0^\circ, \sin 30^\circ, \sin 45^\circ, \sin 60^\circ, \text{and} \sin90^\circ$ equal to $\sqrt{\frac{0}{4}}, \sqrt{\frac{1}{4}}, \sqrt{\frac{2}{4}}, \sqrt{\frac{3}{4}}, \text{and} \sqrt{\frac{4}{4}}$ respectively.
For $\cos\theta$ from $0^\circ \text{to } 90^\circ$, it is just the reverse order: $\sqrt{\frac{4}{4}}, \sqrt{\frac{3}{4}}, \sqrt{\frac{2}{4}}, \sqrt{\frac{1}{4}}, \text{and} \sqrt{\frac{0}{4}}$
For $\tan\theta$, you can just divide sine and cosine: $\tan\theta=\frac{\sin\theta}{\cos\theta}$
For $\csc\theta, \sec\theta, \text{and} \cot\theta$, you can just take the reciprocals of sine, cosine, and tangent respectively.
Amogh
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1Thanks very much for the help. This trick will really help me in the future for solving sums. Thanks again! – Bhuvan P Mar 06 '23 at 14:17
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Remember these two pictures then use the definition of $\sin$, $\cos$ and $\tan$ in a right angled triangle
Paul
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