In Exercises
Given: 

Prove: 

To find:
The value of
Given:
And,
Figure
Calculation:
Sum of acute angles in a right triangle is equal to
Equate the sum of acute angles in a right triangle to
Substitute
Calculus: Early Transcendental Functions
Single Variable Calculus
Intermediate Algebra
Essentials Of Statistics
Finite Mathematics
Calculus: An Applied Approach (MindTap Course List)
Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach
Mathematical Excursions (MindTap Course List)
Probability and Statistics for Engineering and the Sciences
Single Variable Calculus: Early Transcendentals, Volume I
Understanding Basic Statistics
Multivariable Calculus
Applied Calculus
Calculus: Early Transcendentals
Statistics for The Behavioral Sciences (MindTap Course List)
Mathematical Applications for the Management, Life, and Social Sciences
Finite Mathematics and Applied Calculus (MindTap Course List)
Calculus (MindTap Course List)
Elementary Technical Mathematics
Precalculus: Mathematics for Calculus (Standalone Book)
Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
Trigonometry (MindTap Course List)
Calculus of a Single Variable
Contemporary Mathematics for Business & Consumers
Single Variable Calculus: Early Transcendentals
Elements Of Modern Algebra
Finite Mathematics for the Managerial, Life, and Social Sciences
Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th
Study Guide for Stewart's Multivariable Calculus, 8th
Calculus: Early Transcendental Functions (MindTap Course List)
Mathematics For Machine Technology
College Algebra (MindTap Course List)
Calculus (MindTap Course List)
Statistics for Business & Economics, Revised (MindTap Course List)
STATISTICS F/BUSINESS+ECONOMICSTEXT
Research Methods for the Behavioral Sciences (MindTap Course List)
Introduction To Statistics And Data Analysis
Multivariable Calculus
Research Methods for the Behavioral Sciences (MindTap Course List)