SSC SSC CHSL (Tier I & Tier II) Mock Test Series 2025 (New) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
यदि x = 8(sin θ + cos θ) और y = 9(sin θ - cos θ) है, तो \({x^2 \over 8^2} + {y^2 \over 9^2}\) का मान क्या है?
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