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Let l= sin theta, m=cos theta and n=tan ...

Let `l= sin theta, m=cos theta and n=tan theta`.
Q. If `theta=-1042^(@)`, then : (a)`n>1` (b) `n<1` (c) `n=1` (d) nothing can be said

A

`n gt 1`

B

`n lt 1`

C

`n=1`

D

nothing can be said

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to analyze the given angle \(\theta = -1042^\circ\) and determine the value of \(n = \tan(\theta)\). Here are the steps: ### Step 1: Normalize the Angle First, we need to find a coterminal angle for \(-1042^\circ\) that lies within the standard range of \(0^\circ\) to \(360^\circ\). We can do this by adding \(360^\circ\) repeatedly until we get a positive angle. \[ -1042 + 3 \times 360 = -1042 + 1080 = 38^\circ \] Thus, \(-1042^\circ\) is coterminal with \(38^\circ\). ### Step 2: Calculate \(\tan(\theta)\) Now, we can find \(n = \tan(\theta)\) where \(\theta = 38^\circ\). \[ n = \tan(38^\circ) \] ### Step 3: Determine the Value of \(\tan(38^\circ)\) The tangent of \(38^\circ\) can be evaluated using a calculator or trigonometric tables. \[ \tan(38^\circ) \approx 0.7813 \] ### Step 4: Compare \(n\) with 1 Now we need to compare \(n\) with 1. Since \(0.7813 < 1\), we conclude that: \[ n < 1 \] ### Step 5: Select the Correct Option From the options provided: (a) \(n > 1\) (b) \(n < 1\) (c) \(n = 1\) (d) nothing can be said The correct option is (b) \(n < 1\). ### Final Answer The answer is (b) \(n < 1\). ---
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