Math, asked by radhikashukla145, 5 months ago

19. tan²A + cot² A = sec² A cosec²A - 2​

Answers

Answered by BrainlyQueen07
1

Answer:

sin² +cos² = 1; 1 +tan² = sec²; 1 +cot² = cosec². 4. ... A)/sin A = 2 cosecA; (1 -sin )/(1 +sin ) = ( sec -tan )²; sec² A +cosec² A = sec² A cosec²A ... 16. sin A +cos A 17. csc 18. cos² B 19. cos A +4

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