96A Text Book of Trigonometry25, If cose+ cosß-3 and sinα + sínß-a – InterviewSolution

1.	96A Text Book of Trigonometry25, If cose+ cosß-3 and sinα + sínß-a, prove thatCOS tInter 85·"24If 2tan - tan , prove that cosa-3+ Seusß2'5 +3cosß27. Ifsinu-4and cosß=5, prove that one value of cos α-B-86528. If sec(φ + α) + sec(φ-α)2seco, prove that coso-V2cos u
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