Cot-tan=2cos square -1 ÷sin ×cos
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Ans. Taking LHS,
cot - tan
=cos÷sin-sin÷cos
= cos square- sin square÷ sin×cos
= cos sqaure - (1 - cos square)÷ sin×cos
= cos square - 1 + cos sqaure÷ sin× cos
= 2cos sqaure - 1 ÷ sin × cos
= RHS
cot - tan
=cos÷sin-sin÷cos
= cos square- sin square÷ sin×cos
= cos sqaure - (1 - cos square)÷ sin×cos
= cos square - 1 + cos sqaure÷ sin× cos
= 2cos sqaure - 1 ÷ sin × cos
= RHS
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Answer:
Step-by-step explanation:
Refer to attachment
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