Final Answer
$\frac{9}{4}$
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Step-by-step Solution
Problem to solve:
$\sin\left(30\right)^2-2\cdot \cos\left(30^2\right)$
Specify the solving method
1
Calculate the power $30^2$
$\sin\left(30\right)^2-2\cdot \cos\left(900\right)$
Learn how to solve simplify trigonometric expressions problems step by step online.
$\sin\left(30\right)^2-2\cdot \cos\left(900\right)$
Learn how to solve simplify trigonometric expressions problems step by step online. Simplify the trigonometric expression sin(30)^2-2cos(30^2). Calculate the power 30^2. The sine of 30 equals \frac{1}{2}. Calculate the power \left(\frac{1}{2}\right)^2. The cosine of 900 equals -1.
Final Answer
$\frac{9}{4}$