Trigonometry
Inverse Trig
MMTS_Full_Test_03
Grade 12
Question:
The exact value of $\text{cosec}\,10^\circ+\text{cosec}\,50^\circ-\text{cosec}\,70^\circ$ is
Step-by-Step Solution
Key Concept: Use product-to-sum or known values
$\text{cosec}\,10^\circ+\text{cosec}\,50^\circ-\text{cosec}\,70^\circ=6$.
Correct Answer: 3