Grade 9Trigonometry
what is trignometric? how many identities are there?
what is trignometric? how many identities are there?
1 Answer
Rinkoo Gupta
Approved Tutor Answer12 Years agoTrigonometry is the study of relations between angles and sides of a triangle. The basic trigonometrical identities are:
(1) sin2x+cos2x=1
(2) sec2x=1+tan2x
(3)cosec2x=1+cot2x
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Rinkoo Gupta
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