maths of mark question
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pls mark it as brainliest
Step-by-step explanation:
1.
The distance between (a cosθ,0) and (0,a sinθ) is
= √(0 - a cosθ)² + (a sinθ-0)²
= √(-a cosθ)² + (a sinθ)²
= √a² cos²θ + a² sin²θ
= √a²(cos²θ+sin²θ)
= √a²(1)
= √a²
= a units
________________
cos²θ + sin²θ = 1
______
2.infinite
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