Class 11 Mathematics Trigonometrical Ratios, Functions and Identities Fundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles

Easy

Let $\triangle ACB$ be a triangle with a right angle at $C$. Let $AB = 29$ units,$BC = 21$ units,and $\angle ABC = \theta$. Then $\cos^2 \theta - \sin^2 \theta = $

TS EAMCET 2021 All TS EAMCET

A
$1$
B
$\frac{41}{841}$
C
$\frac{40}{441}$
D
$\frac{41}{800}$

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Class 11 Questions

Class 11

Mathematics Questions

Chapter

Trigonometrical Ratios, Functions and Identities

Subtopic

Fundamental trigonometrical ratios and functions, Trigonometrical ratio of allied angles

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