yuryur0061 yuryur0061
  • 06-02-2020
  • Mathematics
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Find the numerical value of sin(a)cos(a) if sin (a)-cos (a) = 0.6

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bhuvna789456
bhuvna789456 bhuvna789456
  • 07-02-2020

The value of sin(a)cos(a) = 0.32

Step-by-step explanation:

Step 1: Given details are sin(a) - cos(a) = 0.6

Step 2: Square the given equation on both sides.

⇒ (sin(a) - cos(a))² = (0.6)²

⇒ sin²a + cos²a - 2 sin(a)cos(a) = 0.36

⇒ 1 - 2 sin(a)cos(a) = 0.36 since sin²a + cos²a=1

⇒ - 2 sin(a)cos(a) = - 0.64

⇒ 2 sin(a)cos(a) = 0.64

⇒ sin(a)cos(a) = 0.32

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