Sine, cosine, tangent and cotangent
7400220110
Submitted by michaela.bailova on Tue, 07/16/2024 - 19:087400120110
Submitted by michaela.bailova on Tue, 07/16/2024 - 18:58Values of Trigonometric Functions of the Same Angle
Submitted by michaela.bailova on Tue, 07/16/2024 - 18:11Evaluating Expressions with Trigonometric Functions III
Submitted by michaela.bailova on Thu, 01/04/2024 - 16:387400220039
Submitted by michaela.bailova on Thu, 01/04/2024 - 16:377400120039
Submitted by michaela.bailova on Thu, 01/04/2024 - 16:272010016808
Level:
C
Simplifying the expression \( \cos 2x + \sin 2x \cdot \mathrm{tg}\, x \) for \( x \in \left(0;\frac{\pi}2\right)\) we get:
\( 1 \)
\( \sin^2x \)
\( \cos^2 x \)
\(2 \sin^2 x \)