ACT Exam  >  ACT Questions  >  What isequal to?a)sin θ - cos θb)... Start Learning for Free
What is equal to?
  • a)
    sin θ - cos θ
  • b)
    sin θ + cos θ
  • c)
    2sin θ
  • d)
    2cos θ
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
What isequal to?a)sin θ - cos θb)sin θ + cos θ...
Formula Used:

a2 - b2 = (a - b) (a + b)
Calculation:
We have to find the value of

tan θ & cot θ can be written as,

Hence,
(sin θ + cos θ)
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Most Upvoted Answer
What isequal to?a)sin θ - cos θb)sin θ + cos θ...
Formula Used:

a2 - b2 = (a - b) (a + b)
Calculation:
We have to find the value of

tan θ & cot θ can be written as,

Hence,
(sin θ + cos θ)
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Community Answer
What isequal to?a)sin θ - cos θb)sin θ + cos θ...
Formula Used:

a2 - b2 = (a - b) (a + b)
Calculation:
We have to find the value of

tan θ & cot θ can be written as,

Hence,
(sin θ + cos θ)
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What isequal to?a)sin θ - cos θb)sin θ + cos θc)2sin θd)2cos θCorrect answer is option 'B'. Can you explain this answer?
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