vidalmari6p99qfk
vidalmari6p99qfk vidalmari6p99qfk
  • 24-01-2020
  • Mathematics
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If angle X and angle Y are complementary angles which must be true?

If angle X and angle Y are complementary angles which must be true class=

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jimohfawwazajibola25
jimohfawwazajibola25 jimohfawwazajibola25
  • 24-01-2020

Answer:

sinx = cosy

Step-by-step explanation:

option D is true because of the relationship between cos and sine

costheta = sine(90 - theta)

sine x = cos (90-x)

but x + y = 90

sine x = cos(x + y -x)

sineX = cos Y

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