What is the value of sin²36/4×sin²72/4
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Answer:
=> sin36°sin72°sin108°sin144°
=> sin36°sin72°sin(180°-72°)sin(180°-36°)
=> sin36°sin72°sin{(90°×2)-72°}sin{(90°×2)-36°}
=> sin36°sin72°sin72°sin36°
=> sin²36°sin²72°
=> [√(10-2√5)/4]²×[√(10+2√5)/4]²
=> (10-2√5)/16×(10+2√5)/16
=> (100-20)/(16×16)
=> 80/(16×16)
=> 5/16
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Step-by-step explanation:
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Step-by-step explanation:
=> sin36°sin72°sin108°sin144°
=> sin36°sin72°sin(180°-72°)sin(180°-36°)
=> sin36°sin72°sin{(90°×2)-72°}sin{(90°×2)-36°}
=> sin36°sin72°sin72°sin36°
=> sin²36°sin²72°
=> [√(10-2√5)/4]²×[√(10+2√5)/4]²
=> (10-2√5)/16×(10+2√5)/16
=> (100-20)/(16×16)
=> 80/(16×16)
=> 5/16
bezglasnaaz and 2 more users found this answer helpful
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Answer
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hearthacker143
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Step-by-step explanation:
please find the attachment
may be it's helpful for you
douwdek0 found this answer helpful
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Show that (1-omega+omega ²)⁶ + (1+omega-omega²)⁶=128Worker A can complete a task in half the time in which B can complete a task that isthree times as large. If A can complete a task in 30 days, then ho
Express 20250:20000 in simplest form. Have you any question Hi guys a very cute good evening from this cutehimanshi to all the brainly stars and ya follow me and inbox me please and thank my answers friendsB square/√a square + b square +cFactorize a^6+b^6 and prove that its value is zero if a^4+b^4=a^2b^22root 3×6root5=6root5 is it true or false10 is added to half of a number gives 100. What is the number?Hain Hain.....kardo air answers delete...bas..!!! are u all happy now....??!? thanksfree points..... have fun......✌️
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