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यदि cot B = 12/5, तो सिद्ध करें कि tan²B − sin²B = sin⁴B sec²B | Class 10 | Exercise 8.1 ✍️
यदि cot B = 12/5, तो सिद्ध करें कि tan²B − sin²B = sin⁴B sec²B | Class 10 | Exercise 8.1 ✍️
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यदि cot B = 12/5, तो सिद्ध करें कि tan²B − sin²B = sin⁴B sec²B | Class 10 | Exercise 8.1 ✍️