[Solved] Without using trigonometric tables, prove that:cosec80o−sec10o=0 - Secondary School Mathematics For Class 10

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Description: [Solved] Without using trigonometric tables, prove that:cosec80o−sec10o=0 - Secondary School Mathematics For Class 10

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Secondary School Mathematics For Class 10

Trigonometric Ratios of Complementary Angles

Without using trigonometric tables, prove that: co { { 80 }^{

Secondary School Mathematics For Class 10

Class 10

RS Aggarwal

Chapter 1: Real Numbers

105 questions

Chapter 2: Polynomials

61 questions

Chapter 3: Linear Equations in two variables

105 questions

Chapter 4: Quadratic Equations

106 questions

Chapter 5: Arithmetic Progression

116 questions

Chapter 6: Coordinate Geometry

100 questions

Chapter 7: Triangles

56 questions

Chapter 8: Circles

21 questions

Chapter 9: Constructions

14 questions

Chapter 10: Trigonometric Ratios

26 questions

Chapter 11: T-Ratios of some particular angles

37 questions

Chapter 12: Trigonometric Ratios of Complementary Angles

54 questions

Without using trigonometric tables, prove that:

sin^{o} 48^{o} + sin^{o} 42^{o} = 1

Without using trigonometric tables, prove that:

co sec 80^{o} - sec 10^{o} = 0

Without using trigonometric tables, evaluate:

\frac{sin 16 ^{o}}{cos 74 ^{o}}

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Chapter 13: Trigonometric Identities

44 questions

Chapter 14: Height and Distance

14 questions

Chapter 15: Area of Circle, Sector and Segment

53 questions

Chapter 16: Volume and Surface Area of Solids

35 questions

Chapter 17: Mean, Median, Mode of Grouped Data, Cumulative Frequency Graph

35 questions

Chapter 18: Probability

70 questions

Question

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Solving time: 3 mins

Without using trigonometric tables, prove that:
$co sec 80^{o} - sec 10^{o} = 0$

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Updated on: Oct 11, 2022

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Secondary School Mathematics For Class 10 (RS Aggarwal)

Text solutionVerified

L H S = co sec 80^{o} - sec 10^{o} = co sec (90^{o} - 80^{o}) - sec 10^{o} = sec 10^{o} - sec 10^{o} = 0 = R H S

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Question Text	Without using trigonometric tables, prove that: $co sec 80^{o} - sec 10^{o} = 0$
Updated On	Oct 11, 2022
Topic	Introduction to Trigonometry
Subject	Mathematics
Class	Class 10
Answer Type	Text solution:1 Video solution: 2
Upvotes	276
Avg. Video Duration	3 min

Without using trigonometric tables, prove that:
$co sec 80^{o} - sec 10^{o} = 0$

Text solutionVerified

Video solutions (2)

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Without using trigonometric tables, prove that:cosec80o−sec10o=0

Text solutionVerified

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Without using trigonometric tables, prove that:
$co sec 80^{o} - sec 10^{o} = 0$