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If pisintheta=1,picostheta=1, then the ...

If `pisintheta=1,picostheta=1`, then the value of `{sqrt(3)tan((2)/(3)theta)+1}`is

A

1

B

`sqrt(3)`

C

2

D

`(1)/(sqrt(3))`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we start with the given equations: 1. \( \pi \sin \theta = 1 \) 2. \( \pi \cos \theta = 1 \) ### Step 1: Solve for \( \sin \theta \) and \( \cos \theta \) From the first equation, we can express \( \sin \theta \): \[ \sin \theta = \frac{1}{\pi} \] From the second equation, we can express \( \cos \theta \): \[ \cos \theta = \frac{1}{\pi} \] ### Step 2: Find \( \tan \theta \) Using the definitions of sine and cosine, we can find \( \tan \theta \): \[ \tan \theta = \frac{\sin \theta}{\cos \theta} = \frac{\frac{1}{\pi}}{\frac{1}{\pi}} = 1 \] ### Step 3: Determine the value of \( \theta \) Since \( \tan \theta = 1 \), we know that: \[ \theta = 45^\circ \quad \text{(or } \frac{\pi}{4} \text{ radians)} \] ### Step 4: Calculate \( \frac{2}{3} \theta \) Now, we calculate \( \frac{2}{3} \theta \): \[ \frac{2}{3} \theta = \frac{2}{3} \times 45^\circ = 30^\circ \] ### Step 5: Find \( \tan \left( \frac{2}{3} \theta \right) \) Now we find \( \tan \left( \frac{2}{3} \theta \right) \): \[ \tan \left( 30^\circ \right) = \frac{1}{\sqrt{3}} \] ### Step 6: Substitute into the expression Now we substitute \( \tan \left( \frac{2}{3} \theta \right) \) into the expression \( \sqrt{3} \tan \left( \frac{2}{3} \theta \right) + 1 \): \[ \sqrt{3} \tan \left( \frac{2}{3} \theta \right) + 1 = \sqrt{3} \cdot \frac{1}{\sqrt{3}} + 1 \] ### Step 7: Simplify the expression This simplifies to: \[ 1 + 1 = 2 \] ### Final Answer Thus, the value of \( \sqrt{3} \tan \left( \frac{2}{3} \theta \right) + 1 \) is: \[ \boxed{2} \] ---
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