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Course: Class 9 > Unit 6

Lesson 1: Into to trigonometric ratios
Math
Class 9
Trigonometry
Into to trigonometric ratios
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Find trigonometric ratios using the Pythagorean theorem

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Problem

tan⁡(θ)=724 for an acute angle θ.
Find sec⁡(θ) without the use of a calculator.
sec⁡(θ)=
  • Your answer should be
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4