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Consider the following statements : ...

Consider the following statements :
1. `1^(@)` in radian measure is less than 0.02 radians .
2. 1 radian in degree measure is greater then `45^(@)`.
Which of the above statements is / are correct ?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

Text Solution

AI Generated Solution

The correct Answer is:
To determine the correctness of the given statements, we will convert between degrees and radians and compare the values. ### Step 1: Convert 1 degree to radians To convert degrees to radians, we use the formula: \[ \text{radians} = \text{degrees} \times \frac{\pi}{180} \] For 1 degree: \[ 1 \text{ degree} = 1 \times \frac{\pi}{180} = \frac{\pi}{180} \text{ radians} \] ### Step 2: Calculate the value of \(\frac{\pi}{180}\) Using the approximation \(\pi \approx 3.14\): \[ \frac{\pi}{180} \approx \frac{3.14}{180} \approx 0.01746 \text{ radians} \] ### Step 3: Compare \(0.01746\) radians with \(0.02\) radians Now we compare: \[ 0.01746 < 0.02 \] This shows that the first statement is true. ### Step 4: Convert 1 radian to degrees To convert radians to degrees, we use the formula: \[ \text{degrees} = \text{radians} \times \frac{180}{\pi} \] For 1 radian: \[ 1 \text{ radian} = 1 \times \frac{180}{\pi} \text{ degrees} \] ### Step 5: Calculate the value of \(\frac{180}{\pi}\) Using the approximation \(\pi \approx 3.14\): \[ \frac{180}{\pi} \approx \frac{180}{3.14} \approx 57.3 \text{ degrees} \] ### Step 6: Compare \(57.3\) degrees with \(45\) degrees Now we compare: \[ 57.3 > 45 \] This shows that the second statement is also true. ### Conclusion Both statements are correct. Therefore, the answer is: **Option C: Both 1 and 2 are correct.** ---

To determine the correctness of the given statements, we will convert between degrees and radians and compare the values. ### Step 1: Convert 1 degree to radians To convert degrees to radians, we use the formula: \[ \text{radians} = \text{degrees} \times \frac{\pi}{180} \] For 1 degree: ...
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NDA PREVIOUS YEARS-TRIGONOMETRY - RATIO & IDENTITY , TRIGONOMETRIC EQUATIONS-MCQ
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  14. If "cosec"theta+cottheta=c, then what is costheta equal to ?

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  15. If sintheta+2costheta=1, then what is 2sintheta-costheta equal to ?

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