Q4 of 120 Page 89

If sin θ =, then cos θ is equal to

Given: sin

The value of the expression cosec (75⁰+ θ)-sec (15⁰- θ)-tan (55⁰+ θ) + cot (35⁰- θ) is

If cos(α+β) = 0, then sin(α-β) can be reduced to

Questions · 120

8. Introduction to Trigonometry and Its Applications

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