tan48°tan23°tan 42°tan 67°=1
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tan48°×cot(90°-23°)×cot(90°-42°)×tan67°
tan48°×cot67°×cot48°×tan67°
(tan48°×cot48°)×(tan67°×cot67°) =1
1×1=1
tan48°×cot67°×cot48°×tan67°
(tan48°×cot48°)×(tan67°×cot67°) =1
1×1=1
priyesh1616:
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Answered by
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hope the attachment will helps u
this que. is solved by complementary angle formula tan ( 90 - Φ) = cot Φ
this que. is solved by complementary angle formula tan ( 90 - Φ) = cot Φ
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Thanks G
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