Question
Question: sin<sup>–1</sup>sin 22 + cos<sup>–1</sup>cos 33 + tan<sup>–1</sup>tan 44 =...
sin–1sin 22 + cos–1cos 33 + tan–1tan 44 =
A
55 – 17p
B
16p – 48
C
45 – 18p
D
None of these
Answer
55 – 17p
Explanation
Solution
sin–1 sin 22 = 7p –22, cos–1cos33 = 33 – 10p
tan–1tan 44 = 44 – 14p
Hence 7p – 22 + 33 – 10p + 44 – 14p , 55– 17p