the solution of class 10 math chapter 8 exercise 8.2.please answer it immediately.
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Important Questions With Answers
1. Express sec θ in terms of cot θ. [Answer: √(1 + cos²θ)/cot θ]
2. Find the value of cosθcos (90 – θ) – sin θsin (90 – θ). [Answer: 0]
3. If sin (20 + θ) = cos 30° then find the value of θ. [Answer: 50]
4. If x = p sec θ + q tan θ & y = p tan θ + q sec θ then prove that x² – y² = p² – q².
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