sin25 upon cos 65 + cos 50 cosec 40 upon tan 15.tan25.tan45.tan 75.tan 65
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0
Answer:
2
Step-by-step explanation:
=> sin25°/Cos(90°-25°) + Cos(90°-40°)cosec40°/tan15×tan25×tan45×cot15×cot25
=>1+sin40×cosec40/tan15×tan25×1×cot15×cot25
=>1+1=2
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