Answer:
2cos(90-68)/cos22×2tan(90-15)/5tan75×3×1×tan40 tan 20 cot(90-50) cot (90-70)
2cos 22/cos 22=2
2tan 75/5 tan75= 2/5
3tan40 tan20 *1/tan40 *1/tan20/5=3/5
overall mutlipication
2*2/5*3/5=12/25
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Answer:
2cos(90-68)/cos22×2tan(90-15)/5tan75×3×1×tan40 tan 20 cot(90-50) cot (90-70)
2cos 22/cos 22=2
2tan 75/5 tan75= 2/5
3tan40 tan20 *1/tan40 *1/tan20/5=3/5
overall mutlipication
2*2/5*3/5=12/25