Center (0,-5) Radius 10

Whose conclusion is correct? choose all that apply. (two max) elijah emily edward esme

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle