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Chapter 8: Q. 24 (page 516)

Find the exact value of the expression-

1+tan25掳-csc285掳

Short Answer

Expert verified

The required value is,

1+tan25掳-csc285掳=0

Step by step solution

01

Step 1. Given information

Given expression,

1+tan25掳-csc285掳

02

Step 2. Calculation

Solving the given expression,

1+tan25掳-csc285掳=sec25掳-csc285掳 ----------1+tan2胃=sec2胃

=sec290掳-85掳-csc285掳=csc285掳-csc285掳=0 ---------sec90掳-A=cscA

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Most popular questions from this chapter

Find the exact value of six trigonometrical functions of the angle胃

Find the area of the triangle. Round answer to two decimal places.

B=70掳,C=10掳,b=5

Make up three problems involving oblique triangles. One should result in one triangle, the second in two triangles, and the third in no triangle.

The tallest tower built before the era of television masts, the Eiffel Tower was completed on March 31, 1889. Find the height of the Eiffel Tower (before a television mast was added to the top) using the information given in the illustration.

Law of Tangents For any triangle, derive the Law of Tangents.

a-ba+b=tan12A-Btan12A+B
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