हल करना beta = 90 deg - 68 deg | 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

$$\beta=90^{\circ}-68^{\circ}$$