If sin⁴ A - cos⁴ A = 1 and 0 < A <_ 90°, then A =? ( The answer is 45°). Just tell the process.
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If sin A = cos A, 0< A <90 , then the angle A is equal what ... Answer: Angle A = 45 degrees ... So, as the value of sin 45 degree is 1/√2 and also the value of cosine 45 ...
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Step-by-step explanation:
According to the Question
Let the ratio be 5x : 4x
Total number of people in group = 72
We need to calculate the number of lawyers in the group & it is also given that the ratio of doctor to lawyers is 5:4
Sun of Ratios = Total number of people
Substitute the value we get
:\implies:⟹ 5x + 4x = 72
:\implies:⟹ 9x = 72
:\implies:⟹ x = 72/9
:\implies:⟹ x = 8
Now, putting the value of x = 8
4x = 4×8 = 32
Hence, the number of lawyers in the group is 32 .
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