Tan3A/sec2A+cot3A/cosec2A=secA*cosecA-2sinA*cosA,....................................
Saru , 7 Years ago
Grade 10
10 grade maths> Tan3A/sec2A+cot3A/cosec2A=secA*cosecA-2si...
1 Answers
ANIKET RAJ
Last Activity: 6 Years ago
use formula:
sin3A=3sinA-4sin3A
cos3A=4cos3A-3cosA
sin2A=2sinAcosA
cos2A=cos2A-sin2A=1-2sin2A=2cos2A-1
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