If SecA.tanA= 0 find the value of A
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Step-by-step explanation:
SecA-tanA = -1
Step-by-step explanation:
SecA+tanA+1=0
=> secA+tanA = -1 ---(1)
=> (secA+tanA)(secA-tanA)=-1(secA-tanA)
=> sec²A-tan²A = -1(secA-tanA)
=> 1=-1(secA-tanA)
=> -1 = secA-tanA
Therefore,
SecA-tanA = -1
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