.. यदि cosec x + cot.x = a, तो cos.x होगा
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Answer:
asinx-1
Step-by-step explanation:
cosecx+cotx=1
(1÷sinx)+(cosx÷sinx)=a
(1+cosx)÷sinx=a
1+cosx= asinx
cosx=asinx-1
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