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If a \operatorname{sinθ+b\operatorname{cosθ=c, then prove that a \operatorname{cosθ-b\operatorname{sinθ=\sqrt{a^2+b^2-c^2 |
| Answer» If a \operatorname{sinθ+b\operatorname{cosθ=c, then prove that a \operatorname{cosθ-b\operatorname{sinθ=\sqrt{a^2+b^2-c^2 | |