10th MAT
8. sec 24 sin 66 + cos 31 cosec 59 - 2 sin?
5 - 2 sin? 85, find its value. ASA
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Step-by-step explanation:
cosec(90-24) (sin66)+(cos31) sec(90-59)-2sint+6-2sint=85,
cosec(66) sin(66)+cos(31) sec(31)-4sint+6=85
1+1+6-4sint=85
sint= 77/4
sint=19.22
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