CBSE Class 9 Answered
can you say the answer for my holiday assignment .i can't find the answer can someone help me trignomentry-uses ratios ,special angles and identities
Asked by SriVaishnavi | 02 Oct, 2018, 09:30: AM
Expert Answer
trigonometry is used in oceanography in calculating the height of tides in oceans. The sine and cosine functions are fundamental to the theory of periodic functions, those that describe the sound and light waves. Also trigonometry has its applications in satellite systems.
Ratios:
special angles:
identities:
cos2x+sin2x=1
1+tan2x=sec2x
1+ cot2x = cosec2x
Answered by Arun | 04 Oct, 2018, 11:01: AM
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