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
4
5
6
8

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

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