हल करना 7sec(A) + 8cos ecA - 5sec(A) - 5cos ecA | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$7secA+8cosecA-5secA-5cosecA$$