Trigonometry Examples

$(1 - \sin (2) \cdot 0) (1 + \tan (2) \cdot 0) = 1$

Step 1

Simplify each term.

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Step 1.1

Evaluate $\sin (2)$ .

$(1 - 1 \cdot 0.03489949 \cdot 0) (1 + \tan (2) \cdot 0) = 1$

Step 1.2

Multiply $- 1 \cdot 0.03489949 \cdot 0$ .

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Step 1.2.1

Multiply $- 1$ by $0.03489949$ .

$(1 - 0.03489949 \cdot 0) (1 + \tan (2) \cdot 0) = 1$

Step 1.2.2

Multiply $- 0.03489949$ by $0$ .

$(1 + 0) (1 + \tan (2) \cdot 0) = 1$

Step 2

Add $1$ and $0$ .

$1 (1 + \tan (2) \cdot 0) = 1$

Step 3

Multiply $1 + \tan (2) \cdot 0$ by $1$ .

$1 + \tan (2) \cdot 0 = 1$

Step 4

Simplify each term.

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Step 4.1

Evaluate $\tan (2)$ .

$1 + 0.03492076 \cdot 0 = 1$

Step 4.2

Multiply $0.03492076$ by $0$ .

$1 + 0 = 1$

Step 5

Add $1$ and $0$ .

$1 = 1$

Step 6

Since the two sides have been shown to be equivalent, the equation is an identity.

$(1 - \sin (2) \cdot 0) (1 + \tan (2) \cdot 0) = 1$ is an identity.