AP EAMCET · Maths · Trigonometric Ratios & Identities
Find the value of \(\operatorname{cosec} 750^{\circ}-2\left(\cot 765^{\circ}\right)\)
- A 0
- B 1
- C 2
- D -1
Answer & Solution
Correct Answer
(A) 0
Step-by-step Solution
Detailed explanation
\(\operatorname{cosec} 750^{\circ}-2 \cot 765^{\circ}\) \(\begin{aligned} & =\operatorname{cosec}\left(720^{\circ}+30^{\circ}\right)-2 \cot \left(720^{\circ}+45^{\circ}\right) \\ & =\operatorname{cosec} 30^{\circ}-2 \cot 45^{\circ}=2-(2 \times 1)=2-2=0 \end{aligned}\) Hence,…
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