1.

= 2 71 tan? Ogpot? 6 F W T कीजिए । ००१९८व... कक_ टी यंदि 11 07 ००.

Answer»

Tana + cota =2take square both sides(tana + cota)² = 2²tan²a + cot²a +2tana.cota =4

we Know,tana =1/cotaso,tan² a + cot²a +2 = 4tan²a + cot² a = 4 -2 = 2



Discussion

No Comment Found